Explain how to divide two rational numbers

The measure of an angle is four times the measure of its supplementary angle. What is the measure of each angle?

An ice cream shop has two cartons of ice cream--one vanilla and one chocolate. if you get one scoop chosen from the cartons at random, what is the likelihood that you will get vanilla?

Which of these expressions have negative values? Select all that apply. 2 + 2 (-3) (7) -2 (27 : 9) + 4 (14 : - 2) (-6) (4 - 10) - (8 : (-2))

The sum of the atlantic ocean's average depth (in feet) and its greatest depth is 43,126

A rectangular solid has sides of 4cm, 6cm, and 8cm. What is it's surface area?

How many different integers can have the same absolute value? give examples?

A box contains 15 balls numbered 1 through 15. Two balls are drawn in succession without replacement. If the second ball has the number 4 on it, what is the probability that the first ball had a smaller number on it? An even number on it?

What is 1/3m-1-1/2n when m=21 and n=12

0.82 times what = 0.0082?

Let a be an irrational number. Is - 24+a rational or irrational?