Please help! It’s for geometry and I don’t understand

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

What should be done to both sides of the equation in order to solve -5m = -40? a) multiply by -5. b) divide by -5. c) multiply by -40. d) divide by -40.

In the figure shown, < 1 is complementary to < 2 and < 2 is complementary to < 3 which statement is true if none of the measures equals 45