Question

fan an medal promised

Answer 1

Question 31 (Multiple Choice Worth 6 points)

[8.04] MA.7.S.6.1

Casey performs a survey to determine what students think about the pizza served in the cafeteria. Which is an unbiased representative sample of the population?

the last twenty students to buy lunch

every tenth student that enters the cafeteria

the first thirty students to buy pizza

every fifth student that buys something other than pizza

Question 32 (Multiple Choice Worth 6 points)

[5.05] MA.7.A.1.2

Sally estimated that her call would take fifteen minutes but it actually took twelve minutes. What was her percent of error?

sixteen point six percent

twenty percent

twenty-five percent

thirty percent

Question 33 (Multiple Choice Worth 6 points)

[7.08] MA.7.G.4.1

A bakery charges thirty cents for a cookie that is 3 inches in diameter. If the price is proportional to the area, how much do they charge for an extra large cookie that is 6 inches in diameter? Assume that each cookie is shaped of a circle.

sixty cents

one dollar and twenty cents

one dollar and eighty cents

two dollars and forty cents

Answer 2

1. b
2. a (maybe)
c. a

Answer 3

question 2=b its twenty percent..

Answer 4

for 3rd question

assume price=y
and area=x

then y=kx
now 1st find k i.e
if y=30 and x=3
then

30=3k
=>k=10

now if
y=? x=6
then

y=kx gives

y=6*10=60

Answer 5

question 1= every tenth student... option B..

Answer 6

get it..???

Answer 7

yes