Here are the prices of some items and the amount of sales tax charged on each in Nevada.
cost of item ($)
sales tax ($)
10
0.46
50
2.30
5
0.23

What is the sales tax rate in Nevada?
Write an expression for the amount of sales tax charged, in dollars, on an item that costs c dollars.

please help me i don't know what to do

Respuesta :

Answer:

10$ x 0.46= 4.6

10$ + $4.20 = $14.20

50$ x 0.230= 11.50

50$ + $11.50= $61.50

5$ x 0.23 = 1.15

5$ + $1.15= 6.15$

Step-by-step explanation: