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Mathematics 7 Online
OpenStudy (anonymous):

HELP ME PLZ

OpenStudy (anonymous):

OpenStudy (anonymous):

plz help me

OpenStudy (anonymous):

with what

OpenStudy (anonymous):

are talking about the document

OpenStudy (anonymous):

ya

OpenStudy (anonymous):

12. Perform the following calculation: (–16) – (–42) A. 58 B. –58 C. –26 D. 26 13. Combine the like terms in the expression 6a – 4b – 2a + c – 3b + a. A. 3a + b + c B. 8a + b + c C. 5a – 7b + c D. 9abc 14. The number –1,000 can be used to indicate a(n) A. increase in inventory of 1,000 units. B. harvest of 1,000 bushels of wheat. C. withdrawal of $1,000 from a checking account. D. receipt of $1,000. 15. (–28)(+16) = A. –448 B. –196 C. –12 D. –44 16. What does the term a3 mean? A. a × a × a B. 3(a + a + a) C. 3a D. a ÷ 3 17. Find the value of negative two to the fourth power. A. –8 B. 8 C. 16 D. –16 18. Perform the following division: –48 ÷ 5 A. –8.1 B. –9.6 C. 9.6 D. 8.1 19. Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 – c) + 2 A. 3(ax + 3b2 – 3c + 6 B. –3(ax – b2 + 3c – 6 C. (ax + b2 – c + 5 D. 3ax +3b2 – 3c + 2 20. What is the value of (–20.16) + (–3.9)? A. 16.26 B. –24.06 C. –16.26 D. 24.06 21. Remove the parentheses from the following expression: (2y + x) ÷ z. A. Z/2y + x B. 2yz + xz C. 2y/z + x/z D. 2y + x + z 22. Find the answer to this problem: (15/16) – (– 3/16) A. 3/4 B. 11/8 C. –3/4 D. –11/8 23. The number +10 can be used to indicate a A. 10-degree rise in temperature. B. loss of 10 pounds. C. decrease in salary of $10. D. withdrawal of $10. 24. Find the value of 30. A. –3 B. 0 C. 1 D. 3 25. Use the correct order of operations to solve the following problem: 6 + (15 × 3) × 2. A. 84 B. 96 C. 102 D. 126 12 is d 13 is a

OpenStudy (anonymous):

do you have a calculator

OpenStudy (anonymous):

no

OpenStudy (anonymous):

do you have a computer

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

you should have a calculator on it. go to start and all programs

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

you need to use it

OpenStudy (anonymous):

i tryed

OpenStudy (anonymous):

do you understand it now

OpenStudy (anonymous):

no :(

OpenStudy (anonymous):

are you taking an online class

OpenStudy (anonymous):

ot 15 ist C right???

OpenStudy (anonymous):

and 18 is B

OpenStudy (anonymous):

15 is multiplication sweetie

OpenStudy (anonymous):

oh ok :\

OpenStudy (anonymous):

18 is correct

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

are u taking an online class? @foxycrew

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

idk the rest i tryed :(

OpenStudy (anonymous):

is it in florida

OpenStudy (anonymous):

bump this to the top plz

OpenStudy (anonymous):

hey can you plz fan me @foxycrew

OpenStudy (anonymous):

okay all you have to do is follow the directions

OpenStudy (anonymous):

23 is c

OpenStudy (anonymous):

thx

OpenStudy (anonymous):

no prob

OpenStudy (anonymous):

can you help with 21 plz

OpenStudy (anonymous):

idk it

OpenStudy (anonymous):

plz

OpenStudy (anonymous):

it is d. canyou help me with this problem. Riley is 3 years older than his sister. Which of the following expressions shows the sum of their ages if s represents Riley's sister's age? 3s s + 3 2(s + 3) 2s + 3

OpenStudy (anonymous):

thx

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