Write an equation for each problem. Then solve. Round to the nearest tenth if necessary.7. 40 is what percent of 145? Round to the nearest tenth if necessary.

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