Question

a plant is 20 in tall if the plant grows to H in each week for the next 4 weeks and H inches for each of the two weeks after that which expression shows the height of the plants in inches after 6 weeks

Answer 1

You know that you have 20 inches to start with, then it will grow 2h four times, or 8h total. Then it will grow h 2 times or 2h. You add the 20, 8h, and 2h, to get 20+10h.