In 4 hours and 45 minutes, what is the greatest number of phone calls that could be made if each call lasts 15 minutes? Show each of the steps for solving the problem.

The system of equations graphed below has how many solutions? y = 2x + 2

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?