A tour bus costs plus for each passenger.

Write the expression.

Phrase: Sum of and for each passengers.

Expressions: .

Find the cost for passengers.

Substitute the number of passengers is and simplify the expression.

First operation is multiplication.

                (Multiply: )

Next operation is addition.

                        (Addition: )

Thus, the total cost for passengers is .

Table:

Make a table to find the cost for and passengers.

Number of passengers	Expression	Cost
	\ \
	\ \	\ \
	\ \	\ \
	\ \	\ \

Observe the table:

The cost for and passengers are obtained in the table. \ \

The total cost for passengers is .

Table:

Number of passengers	Expression	Cost
	\ \
	\ \	\ \
	\ \	\ \
	\ \	\ \