The sales tax in one state is 3%. Write a function rule for finding the total cost of an item with selling price x. Then find the total cost of a CD player with a selling price of $150. f(x) = x – 3; $148.97

f(x) = 3 + x; $151.03

f(x) = 0.03x; $4.50

f(x) = 1.03x; $154.50

D.    f(x) = 1.03x; $154.50

ok so the cd player cost

$150 the sales taxs is 7% so you do

7% of 150= $10.50

so you add

$150+$10.50= $160.50

so the total cost is $160.50

hope this help

plz mark me brainliest i really need it. :)

Step-by-step explanation: 2 answers from/p>

1:  y=3/100x

y= 3/100 (150)

y=4.5

150+4.5=154.50 total cost of CD player.

Therefore that is the answer. Please mark as brainliest and give a thanks.

2:  F(x)= 1.03x; $154.50