i know the answer is 1, but i really need an explanation for why that is! can anyone please help me??

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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.