You can buy 3 t-shirts for $24. write a proportion that gives the cost c of buying 7 t-shirts.

$56

Step-by-step explanation:

Divide 24 by 3 to get 8

$8 will be the amount it'll cost for 1 t-shirt

So you would multiply 7 by 8 to get 56

So $56 will be the amount of 7 t-shirts

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9