Sandy charges each family that she babysits for a flat fee of $10 for the night and $5 extra per child. Sandy made a total of 30 dollars. Write an equation to represent the number of children
that Sandy watched.

Ineed with this problem 21 show steps

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota