Answer: See Explanation
Step-by-step explanation:
You didn't really say what you want to calculate but based on the information, I'll assume that you want to calculate the total cost.
Since he expression 4(a+12)+5(8) represents the total cost of the tickets. Therefore, the total cost will be:
= 4(a+12)+5(8)
= 4a + 48 + 40
= 4a + 88