Melissa made $204 for 12 hours of work. At the same rate, how much would she make for 9 hours of work?

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

Which math sentence can be used to determine if the triangle is a right triangle?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.