14 A box of 10 coloured pencils costs $7.50. These pencils can also be bought
individually for 72 cents each.
a Find the cost per pencil in each case.
b Which option provides better value or is the best buy? Explain.

the box: .75 each

individually: .72 each

individually is the best deal to buy the pencils. you save .02 per pencil

Step-by-step explanation:

x = 12

y = 15

step-by-step explanation:

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: