20 nails for every 5 shingles 12 nails for every three singles are the ratios equivalent

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

What is the solution to the system of equations? y=1.5-3 y=-x