7 - (2x + 1) + 4x
please show solving steps as well

Step-by-step explanation:

Distribute the negative inside 2x+1

Remind that negative multiply negative must equal positive.

variables cannot sum/add/subtract with constants.

They must be the same terms.

Therefore, our answer is 2x+6

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:

the answer is the third / last answer

step-by-step explanation: