How to write 89,170,326 in expanded form

80,000,000 + 9,000,000 + 100,00 + 70,000 +300 + 20 + 6

the answer is 80,000,000 + 9,000,000 + 100,00 + 70,000 +300 + 20 + 6

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.