Construction company needs to remove 30 tons of dirt from the construction site they can remove 3/5 tons of dirt each hour How long will it take

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

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?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?