Answer:
59.157 cubic centimeters
Answer: 57 miles and 3 gallons
Answer 315 people.
Step-by-step explanation:
5(x-2)²+6=86
5(x²+4)+6=86
5x²+20=86-6
5x²=80
x²=80÷5
x²=16
✓x²=✓16
x=4