Three different stocks were ordered. the purchase prices were 8 3/8 dollars, 12 1/8 dollars and 15 3/8 dollars. how much was paid for all three stocks?

72 is the answer to this problem

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.