You have 4/4 of a pie. if some one eats 1/2 of the left over pie what fraction remains?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?