Question

The function f(x) = x + 5 represents the length of a rectangle, and the function g(x) = 7x - 2 represents the width of the rectangle. What is the area of the rectangle if x = 3

A. 56
B. 27
C. 285
D. 152

Answer 1

Okay so it tells us that x=3 so we have to plug that in for f(x) and g(x)
f(x)=3+5
f(x)=8
g(x)=7(3)-2
g(x)=19
Area of a rectangle is Length times width
8 times 19 is 152
so 152 is the answer

Answer 2

Thank you 😭

Answer 3

yww<3