Amy can clean the house in 8 hours. When she works together with Tom, the job takes 5 hours. How long would it take Tom, working by himself, to clean the house? A) 13 1/3 hr
B) 3 hr
C) 14 1/3 hr
D) 13 2/3

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph