If c(x) = 4x^2 - 3, find the following
(a) c(0)
(b) c (-1)
(c) c (-2)
(d) c (-3/2)

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

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.