Combine like terms 5/6a - 5/6b + 1/3a a. 7/6a - 5/6b b. 1/3ab c. 5/18 a - 5/6b d. 1/3a

10

step-by-step explanation:

7+3=10

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.