Simplify an expression for the area of the rectangle.

i think it may be 21

Step-by-step explanation:

(88x - 100) cm²

Step-by-step explanation:

the area of rectangle =

l × w = 20 ×(4 2/5 x - 5)

= 20×(22/5 x - 5)

= (88x -100) cm²

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !