Question 1 of 5
A school store tracks the number of notebooks sold and the total money collected, as shown in the table.
If this pattern continues, which expression gives the total money collected, in dollars, for selling notebooks?
Explanation
From the table, each notebook costs the same amount. Using any row, divide total money by number sold: , , and . So the total money for notebooks is times , which is .
Concept summary
In a table with a constant rate, find the unit price and multiply it by the number of items to write the expression.