Ка In two or more complete sentences, explain how to find the interval(s) in which the function is decreasing and how
interval notation is used to express the interval(s). In your final answer, include the interval in which the function is
decreasing

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake