What is the answer to 126=14g

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Collin did the work to see if 10 is a solution to the equation r/4=2.4