1. 12x – 8x + 4 = 20
2. 9w + 4w – 5w + w = -9

the answer for just eliminate the variables and to the solving tho get the answer as they get the answer to the number above

i need a picure

step-by-step explanation:

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: