Hello. Can someone help me? I'm not very sure about some of these :(

Stephen read a 90-page book in 6 days. If he continues reading at that rate, how long will ittake him to read a 300-page book?
Answer: 20 days. I found this by doing 90/6=15, and then 300/15=20.

Mrs. Walters drove 360 miles on 25 gallons of gas. Mr. Walters drove 480 miles on 32 gallons
of gas.
a. Find the mileage per gallon for Mrs. Walters's car.
b. Find the mileage per gallon for Mr. Walters's car.
c. Which car is getting the better mileage per gallon?

Am I supposed to be doing 360/25? And then 480/32? And then see which number is bigger? Is that it?

The distance between Milltown and Summerville is 3.5 inches on a map. If the map scale is 1 inch = 20 miles, what is the actual distance between the towns?

70 miles, because if 1 inch equals 20 miles, and there are 3.5 inches on the map, I have to do 20x3.5, which is 70.

Can someone help with the first one and check my others? It would mean a lot to me, I haven't been understanding math since 3rd grade and my mother had me skip a grade of math, it's really overwhelming and I'll repeat this year of math Imy mother does not see improvement,and I will apparently not go outside on summer. "Spend everyday doing math". This is another one of the many reasons math and I don't have a good relationship. I ranted a bit, I'm sorry. Can someone please help? Again, it means a lot to me =)

4 answers

*if my

I really think I do 360/25 and 480/32. If I do, that would be 14.4 mpg(Mrs.Walters) and 15 mpg (Mr. Walters), which means Mr. Walters has the better mileage, right?
Answer: 20 days. I found this by doing 90/6=15, and then 300/15=20.
Yes
Am I supposed to be doing 360/25? And then 480/32? And then see which number is bigger? Is that it?

Yes
70 miles, because if 1 inch equals 20 miles, and there are 3.5 inches on the map, I have to do 20x3.5, which is 70.

Yes