It costs $3.45 to buy lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts?

7

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:

total of apples - take away four

6-4 = 2

answer is 2 apples