At a summer camp there are 40 boys out of 70 campers. what is the ratio written as a fraction in simplest form?

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?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Select the lengths in centimeters that would form a right triangle