Answer:
5
Step-by-step explanation:
I am not quite sure if this is correct.
first I figured out how many minutes per 1 mile: 24
then I figured out how exactly much time 1.5 hours is: 1 hour and 12 minutes. then I subtracted that from 2 hours, knowing that 1.5 hours is 3 miles, I found that there was only 48 minutes remaining in that hour, which would be 24×2, aka 2 miles. so the final answer would be 5 miles, sorry for the run-on sentence. Yet again, I am not quite sure if this is right-
-From: Lemon
Answer:
Part 1 - B
Part 2 - He did not multiply 2 and -4n. Instead he just subtracted them (3n -4n) that gave him -1n.
Answer:
About 706.5 square inches.
Step-by-step explanation:
Surface area of a sphere is: 
The radius is half the diameter. So, the radius of the given sphere is 7.5 in.
15/2 = 7.5
Find the surface area:
I use 3.14 for pi.

The surface area is about 706.5 square inches.
Hope this helps.