Mark is painting a mural. he paints 1/5 wall in 2/3 hour. what is his rate per hour?
a: 3/10 wall per hour
b: 3/8 per hour
c: 2/5 per wall
d: 2/15 per wall
someone me

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

21/58.

hope to be marked brainliest