1. Which angle in the quadrilateral with vertices A(2,-4), B(-5 – 2), C(-4,2)and D(4,0) is a right angle?
a. ABC
b. BCD
C. CDA
d. DAB

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 13-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

Given abc find the values of x and y. in your final answer, include all of your calculations.