I think the answer is £53, sorry if I am wrong.
For this case we have the following equation:

The variables are:
t: time in hours
d (t): distance traveled in miles.
We evaluate the distance traveled after 4 hours.
So we have that for t = 4:
Answer:
d (4) = 68
This means that after 4 hours Joanna cycled for 68 miles total
Answer:if you are solving for y
Step-by-step explanation:-4×2+5x+7
y=5x-1...
Ok so you have 0.008
1/3=0.33
0.048
0.36
1/9=0.11
so you tell me what u think