If 3n+ 4n = 42, then n is
a. 4.
a. 2
c. 7.
D .21

n = 6

Step-by-step explanation:

First we would plug the values with n, starting with 4.

So A. is not an option

Now we try 2.

B is NOT an option

Now we try 7

Now we try 21

Now we check what was closest...7

so we try numbers less than 7

n is = to 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:

x-3y=4

step-by-step e