Janine will be traveling to Botswana, where the unit of currency is called the pula, which means “rain” in the local language. Suppose, $1 is equivalent to 7 pula. If Janine has $500 to spend in Botswana, how many pula will she have to spend?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

The measure of an angle is 117°. what is the measure of a supplementary angle?