Ahot air balloon went from an elevation of 4,294 feet to an elevation of 3,412 feet in 36 minutes. what was its rate of descent?

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