Question

Westford Lake was originally blue because it only had 810 algae plants. Then towns and farms cropped up by the lake. This caused 9,772 more algae plants to grow, which turned the lake green. How many algae plants are now in Westford Lake?

Answer 1

10,582 algae plants

Explanation:

10,582 algae plants. You have to add 810 and 9,772 to get 10,582 algae plants.