Find the perimeter of a triangle whose vertices are D(-8,7), E(9,0) and F(-10,-3).

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Select all the expressions that will include a remainder.