The price of a DVD is $19 . This price is 12% lower than last week. What was the price of the DVD last week?

$21.28

Step-by-step explanation:

First, find 12% or 19 -- this is 2.28

Next, take the total (19) and add 2.28 to it.

$19+$2.28=$21.28

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: