A bicycle store costs $3500 per month to operate . The store pays an average of $80 per bike . The average selling price of each bike is $180. How many bikes must the store sell each month to break even

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

If you answer 2+2 you will get over 80 points

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.