Acab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles. if a passenger has to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?

12

Step-by-step explanation:

Given : A cab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles.

To Find: If a passenger has to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?

Solution:

Cab fare Expression :

Where d is the distance traveled in miles.

Now we are given that a passenger has to pay a $21 fare for a ride

So,

Thus the value of d is 12 .

i think c. but don't trust it.

step-by-step explanation: