What is 7.4 as a mixed number in simplest form.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?