The expression 25c + 48a represents the total cost for a group of childeren and adults to attend the amusement park. The variable c represents the number of children attending. The variable a represents the number of adults attendiing. What is the total cost for 12 childeren and 4 adults?
What is our expression with the values substituted in for the variables?
Variables: ____
The total cost is: ___
Variables: c = 12, a = 4
The total cost is: 25(12) + 48(4) = 300 + 192 = 492