The temperature at 6:00p. m. was 7 degrees Celsius. The temperature dropped 2 degrees every hour. What was the temperature at 11:00 p. m.

#12 find the value of x. #13 find the value of the variable.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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.