Javier keeps track of his driving so that he can take a tax deduction. Javier drove 220 miles last month, in comparison to 319 miles this month. By what percent has his monthly driving
increased?

What is the value of x when x + 7 = 21?

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.

Larry wants to buy some carpeting for his living room. the length of the room is 4 times the width and the total area of the room is 16 square meters. what is the length of the living room