Evaluate f(x) = -4x - 5 for x = -1.
a. -9
b. -1
c. 1
d. 4

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Bring the fraction a/a-4 to a denominator of 16-a^2

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.