A pet supply store is having a 25% off sale. Which equation represents the sales price, P, for a purchase if n is the original price?
A
P=n+ (0.25n)
B
P=n-(0.25n)
С
P=0.25n
D
P=n-(1.25n)

Solve the system by the elimination method. 2x + y - 4 = 0 2x - y - 4 = 0 when you eliminate y, what is the resulting equation? a.x = 0 b.4x = -8 c.4x = 8

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min