X/21 = 3/63 solve the proportion

Scott calculated a 20% discount on a sale item by finding 80% of the price. Why does this make sense?

What to numbers can add up to six and can be multiplied to nine

Ashley is on her way home in her car. She has driven 21 miles so far, which is one-third of the way home. What is the total length of her drive?

Use either the ratio test or the root test as appropriate to determine

To students are both working on the same problem a Box of laundry soap as 25% more so in its new Box the new Box hold 2Kg how much soap did the old box hold

In how many ways can you select two people from a group of 18 if the order of selection is not important?

Which expression represents the number of possible combinations of n items taken r at a time?

Numbers that are greater than 5 and less than 5.75

Which best describes a triangle with angle measures of 58 degrees 47 degrees and 85 degrees?

Darryl is a plumber. He charges $35 to make a service call and $20 an hour for any repairing. Write an algebraic equation relating Darryl's charge to the total number of hours of labor required.