How many times larger is 1 x 10^6 than 5 x 10^-5? a) 2 x 10^10 b) 2 x 10^11 c) 5 x 10^10 d) 5 x 10^11

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

How can you tell when x and y are not directly proportional?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.