What is the width and the area?

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?