find the solution to #12 - You work at a carnival for 7.5 hours. You earn $71.25. Determine the hourly rate, r, for the time you worked

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Javier bought a painting for $150. each year, the painting's value increases by a factor of 1.15. which expression gives the painting's value after 77 years?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4