Keelah's clothing store buys coats for $50 and then sells them for $80 .what is the percent of mark up on the price of the coat ?

Find the sum of the following series. round to the nearest hundredth if necessary.

David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =