Someone please help me ​

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Tom drove 206 miles in 3.9 hours. estimate his average speed.

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90