Using tape diagrams john eats 3 slices of pizza in two minutes, how many slices of pizza will he eat in 10 minutes

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

If i had 1234 apples and 1 banana what is the total amount