I need to find the slope of the line

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

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)