Solve for x if < 1=3×+20 and < 3=5x-16

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

Simplify 1/3 12x - 6 a. -2x-1 b.-2x-8 c.-x+4 d.3x+10 e. 4x-2