Which of the following are sources of electromagnetic radiation on Earth?
It's in the doc below

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

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.