F(t) = 220(1.015)t what's the intial amount ?
a = 220

a = 1.015

a = 15%

a = 1

b

step-by-step explanation:

b

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:

c

step-by-step explanation: