Please Help!! Due in 5 minutes!

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

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