Which algebraic expression is equivalent to the expression below? A.
18x - 45

B.
9x - 7

C.
2x - 45

D.
18x + 45

Megan and desmond each add the same amount of water to their aquarium megan makes 5 ml of chemical solution with every gallon of water for her aquarium desmond mixed 8 ml of chemical solution for every 2 gallon of the water for his aquarium.