3/7 of what number = 21

A wise man once said, "400 reduced by 4 times my age is 180." What is his age?

A drawer contains 8 red shirts, 6 blue shirts, and 7 white shirts. If a shirt is drawn at random, what is the probability that the shirt will be blue?

8.1. AP-6 What is the value of x? x=1 (Simplify your answer. Type an exact answer, using radicals as needed.)

What is pathagrien therom

Suppose the number of eggs used in exercise 4 is 3 eggs for each batch of 12 muffins, and 48 eggs are used. Howmany batches and howmany muffins will be made

The ratio of zebras to elephants at the zoo is 6:5. The ratio of Gorillaz two zeros is 7:2. There are 30 zebras at the zoo. How many elephants are there? How many gorillas are there

A telephone number consists of seven digits, the first three representing the exchange. how many different telephone numbers are possible within the 537 exchange? the answer is.

Kenny's weight is 6/7 times Melvin's weight. How many times the total weight of the two boys in Kenny's weight?

The area of a semicircle is 2 times the area of a circle. True or False?

Zeus Industries bought a computer for $2754. It is expected to depreciate at a rate of 27% per year. What will the value of the computer be in 4 years?