Answer:
=-26
Step-by-step explanation:
f(n) = 7n – 5
Let n = -3
f(-3) = 7*(-3) – 5
Multiply first
= -21-5
=-26
Area = 42 sqaure inches
Length =7
Area = l x width
if the width is X then 7x=42 and x= 42/7 = 6
there X (width) is 6
perimeter thus is 7+7+6+6= 26
The answer is 26
