Use the following functions rule to find f1 f(x)=(3)x+10

I believe the answer is f(1) = 13

Step-by-step explanation:

1. Substitute x for 1:

f(1) = 3(1) + 10

2. Evaluate:

f(1) = 3 + 10

f(1) = 13

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.