A sporting goods store pays its wholesaler $50 for a certain baseball glove and then sells the glove to customers at a retail value of $90. What is the markup rate?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?