One month, Ruby worked 8 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 112 hours. Find the number of hours each person worked.

What ordered pair (x, y) is a solution to - x+6y=2

If the circumference of a circle is 21 inches, what is the diameter? Use 3.14 for and round your answer to the nearest hundredth.

Rewrite 20/7 as a mixed number

What are the steps to add polynomial fractions?

The volume of a box is 87.5 inches. What is the volume if the box is scaled down by 1/10?

Which integer represents 7 feet below sea level?

If you toss a coin 6 times and list the results (heads or tails) in order, how many different orders are possible?

A multiple choice test has ten questions each with four possible answers of which only one is the correct answer. what is the probability that sheer guess work yields 5 to 10 correct answers?

A right triangle has legs that are 15 feet and 25 feet long. What is the length of the hypotenuse?

What is the answer (10+66-4to the power of 2) : (3+3) in order of operations