By 9:00 a. m., Carl had sewed 16 shirts. By 11:00 a. m., he had sewed a total of 40 shirts. On average, how many shirts did Carl sew per hour from 9:00 a. m. to 11:00 a. m.?
8
12
20
24

answer: asdfghjkl,mnbv

step-by-step explanation:

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.