Answer:

Step-by-step explanation:
A certain NYC taxi driver has decided to start charging a rate of r cents per person per mile
rate is cents . convert it in to dollars
1 cent = 1/100 dollars
r cents = r/100 dollars
Each people travels x miles
cost is 
For 3 people the cost is

Discount is 50%, so we divide by 2

C = π d
<span>d = c / π </span>
<span>d = 25.56 / π </span>
<span>d = 8.14 in </span>
13. 1
14. 1
15. any number and 0 will have a quotient of 0.
for example 7/0=0 . 8/0=0 . 9/0=0
if you try and check your work using multiplication 7*0=0 . 8*0=0 . 9*0=0
then you will realize the rule is right