What is the prime factorization of 72? a. 1 x 2 x 4 x 9 b. 2^2 x 3^2 c. 2^2 x 3^3 d 2^3 x 3^2

rounding to the nearest thousandth would be 452,000

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.