Question

1. -3 is a solution of x(x + 2) = -12.

True
False
2.

c = - 6
c = - 54
c = 6
c = 54
3. A store manager uses a markup rate of 23% on all apparel. Find the cost of a shirt that sells for $12.99. Use the formula S = C + R x C, where S is the selling price, C is the cost, and R is the markup rate.

$10.56
$2.99
$15.98
$56.48

Answer 1

1) plug -3 for x and see if it = -12

\(-3(-3+2) = -12\)

do you know how to start?

Answer 2

no

Answer 3

is it false? @Mehek14

Answer 4

ye it's false

Answer 5

For the second one, is there an equation?

Answer 6

2.

Answer 7

for 2 the equation is c over 3 =18

Answer 8

\(\dfrac{c}{3}=18\) ?

Answer 9

yes

Answer 10

to solve for c

multiply 18 * 3

Answer 11

is the answer 54?

Answer 12

how i do the last one

Answer 13

correct

Answer 14

how do i do the last one? @Mehek14

Answer 15

can you help me @sweetburger

Answer 16

i just need help with the last one