Which of the following numbers best approximates 3.076 - 307.6 A. 300
B. 3,000
C. 30
D. 30,000

A

Step-by-step explanation:

The minus sign is not needed.

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.