### Video Transcript

A tollbooth collects a 5-dollar
toll from every automobile passing by a certain road. The toll collector finds that
during his shift, which lasts π hours, the amount of money collected π, in
dollars, can be estimated by the formula π equals five ππ, where π is the
average number of cars passing per hour. On Monday, it is estimated that the
rate of cars passing the toll gate is 100 cars per hour. What is the estimated amount of
money, in dollars, collected by the toll collector on Monday during his seven-hour
shift?

Weβre told in the question that the
amount of money is equal to five ππ. π is equal to the rate of cars
passing the toll gate per hour. In this question, this is equal to
100 cars. π is equal to the shift
length. In this question, we know that the
toll collector worked a seven-hour shift. This means that in order to
calculate the estimated amount of money, we multiply five by 100 by seven. Multiplication is commutative. So we can multiply the numbers in
any order. We will start by multiplying five
by seven. This is equal to 35. 35 multiplied by 100 is equal to
3500.

The estimated amount of money taken
by the toll collector is 3500 dollars.