During an electronic store's sale days, the regular price for cd players is discounted $10.there is a state sale tax of 5%, and the $10 discount is applied before the sales tax is calculated.

a) write am expression that shows the regular price r of a cd player minus the $10 discount.

b) write a rule for the function p(r) that expresses the final price p of a cd player with the discount applied and sales tax included.

c) how much would you pay during sale days for a cd player regularly priced at $29.50

step-by-step :

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system