A student's cost for last semester at her community college was $3000. she spent $510 of that on books. what percent of last semester's college costs was spent on books?

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079