Joel earns a commission of 5% on the audio equipment he sells and the store keeps the rest he sells a 750$ amplifier

i dont know what your asking. but he would take back from the 750$ 37.50$ that is 5%

Step-by-step explanation:

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 !

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared