The reciprocal of 15 is
the reciprocal if 5_12​

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?