Answer: C
Explanation:
quarts per liter:
1.
Cost per quart = Cost per liter / 1.06
Cost per quart = $0.50 / 1.06
Cost per quart ≈ $0.4717 (rounded to four decimal places)
2.
Cost per gallon = Cost per quart * 4
Cost per gallon ≈ $0.4717 * 4
Cost per gallon ≈ $1.8868 (rounded to four decimal places)
= $1.89