Need help with this thank you

x=56

Step-by-step explanation:

I started off by figuring out what’s the total internal angles for a pentagon which is 540

Then i did 72+ 3x +2x+89+99 = 540

And i solved for x=56

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: