Davie and horatio are riding their motorbikes on a scenic tour that is 80 miles long. davie rides at 20 miles per hour and leaves 90 minutes before horatio. how fast must horatio ride to finish at the same time as davie?

32 mph  i took the test

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: