Please answer the question on the attachment <3

Step-by-step explanation:

perpendicular (p)= 7.7

hypotenuse (h)= 9.7

now

sin x = p / h

sin x = 7.7/9.7

x = sin ^-1( 7.7/9.7)

x = 53°

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

i think 5 miles per hour

step-by-step explanation: