The school principal orders 6 new chalkboard for each grade. there are 3 grades in the school. each new chalkboard cost $98. what is the total cost for the new chalkboards? explain how you found your answer.

6 chalk boards x 3 grades = 18 chalk boards
18 chalk boards x $98 per chalk board = $1,764

6 per grade, 3 grades in school. Multiply these 2 numbers to find out how many total chalkboards the principal is ordering.
6(3)=18, the principal is ordering 18 new chalkboards.

Since each chalkboard costs $98, multiply 18 by $98 to find the total cost of all the chalkboards.
18(98)=1764. The new boards cost will be $1,764.
Final
The total cost of the new chalkboards will be $1,764.

Cdoes not have two variables