Marty has saved $72. he spent $8 on a video rental. write a ratio as a fraction in simplest form to represent what portion of his savings he has left.

Step-by-step explanation:

Given : Marty has saved $72. He spent $8 on a video rental.

i.e. The amount of money he saved = $72

The amount of money he spent on video rental = $8

Now, the amount of money he had left =

Thus , the ratio that represent what portion of his savings he has left :-

Hence, the ratio that represent what portion of his savings he has left :-

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: