Im doing midpoints in math today. Does anyone think they can explain the anwsers to the following questioins. I wasn't here, and now im stuck. Thanks alot.

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path