Using the factoring process, what constant is added to the right side of the quadratic equation 2x2− 5x + = 12 + in order to solve by completing the square?
(remember, this is a two step process.)

a. -5/4

b. 5/2

c. 25

d. 25/8

Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.