A picture is 10 inches wide by 15 inches long. The area of the picture, including a frame that is x inch thick, can be modeled by the function A(x) = (2x + 10)(2x + 15).
a.
Use function notation to write a statement that means: the area of the picture,

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

answer: i don't understand it

step-by-step explanation: sorry

the answer is the third / last answer

step-by-step explanation: