Check out this rectangular prism.

find the surface area of the rectangular prism (above) using its net (below).

A=82

Step-by-step explanation:

the formula for the surface are of a rectangular prism is 2(w l+ h l+h w)= A

we could replace the variable:

2(2*3+7*3+7*2)

we solve:

2*3=6

7*3=21

7*2=14

6+21+14= 41

41*2= 82

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

45

step-by-step explanation: