Use the percent proportion to solve each problem. round to the nearest tenth. 37.5 is 4% of what number? a. 93.75 c. 937.5 b. 1.5 d. 837.5

The triangles are similar. what is the value of x? show your work.

Nine more than four times a number is the same as one less than twice the number. find the number?

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.