What is a equivalent expression for 4(x+7) -9

4x+19

Step-by-step explanation:

You have to distribute 4 to x and 7, making 4x and 28. Then you subtract 9 from 28. This makes 4x+19 as the final answer

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: