What is the step by step math problem and the answer to -7+(-7)^2

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.

Tell whether the two rates form a proportion

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship