Answer:
D
Step-by-step explanation:
The answer is d, because a represents adults, and c represent children. It's $45 per adult, so $45a, and $30 per child, so $30c. a+c is equal to 10, because that's how many tickets were purchased. $45a+$30c=345, because $345 is the total amount spent on tickets.
40 ton x 2000 = 80,000 pounds
320000/8000 = 40 pounds per person
It comes out to 0.8775 so it rounds to about $0.88