g(x)=2x+2

h(x) x^2-1

find(g-h)(2)
and please show work!!

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Which equation represents h for right triangle abc

Find the percent error of the measurement 4 cm