Mrs. Perez paid $6.60 for a dozen cupcakes. What is the unit cost for each cupcake?

What is the area of the triangle 10 13 12

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?