A boa constrictor is 18 inches long at birth and grows 8 inches per year. Write an equation that represents the length y (in feet) of a boa constrictor that is x years old.
8 inches per year = 8/12 feet = 2/3 foot
y = 18 + 2/3x
8 inches per year = 8/12 feet = 2/3 foot
y = 18 + 2/3x