Suppose that an empty crate weighs 2 kilograms. a typical orange weighs about 0.2 kilogram. the total weight of the crate with oranges is 10 kilograms. how many oranges are in the crate?

Fabian harvests 10 pounds of tomatoes from his garden. he needs 225 pounds to make a batch of soup. if he sets aside 2.8 pounds of tomatoes to make spaghetti sauce, how many batches of soup can fabian make?

What is the number 321,000,000 in scientific notation? also what is the number? ?

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?