Answer:
-x² + x -1
Step-by-step explanation:
1. 70 dimes and 33 quarters
2. 18 dimes and 9 nickels
3. 236 adults and 342 children
4. 12 quarters, 9 dimes
5. 9 nickels, 18 dimes
Answer:
I'm pretty sure the answer is $750
It's 810. if you're ever unsure just multiply the too numbers together!