book Maths Puzzle Numerical Ability

The student-teacher ratio for Washington High was reported to be 27.5 to 1. If there are 42 teachers, then how many students are there?

Read Solution (Total 0)

book Other Question

I am taking college algebra online and am having problems with equations and inequalities: for example: find all real solutions by factoring:
x^3+4x^2-x-4=0

thanks
Sal S= xs(R + s) for r