Use a quadratic equation to find two real number that satisfy each situation, or show that no such number exist. their sum is -15, and their product is 56

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?