last year Mrs del Greco spend $572 on gas. this year because she did not drive as much she spent $393 what is the percent change don't forget to identify the changes increaser decrease run your answer to the nearest tenth

68%

Step-by-step explanation:

Divide the amount she spent this year, by the amount she spent last year, in this case, 393 divided by 572 =0.68706293706, but we need to make it into hundredths, so it is 0.68, or 68%.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right