Aplant is 20 inches tall. if the plane grows 2h inches each week for the next 4 weeks, and h inches for each 2 weeks after that, which expression shows the height of the plant in inches after 6 weeks?

options:

a: 20+20h
b: 20-10h
c: 20-2h
d: 20+h

20+10h

Step-by-step explanation:

Height of plant = 20 inches

The plant grows 2h inches each week for the next 4 weeks

So, The plant increase by length in 4 weeks =

So, Length after 4 weeks = 20 +8h

Now we are given that after 4 weeks there is an increase of h inches for each 2 weeks

So,  The plant increase by length in 2 weeks =

So, Height of plant after 6 weeks =  20 +8h + 2h = 20+10h

Hence Height of plant after 6 weeks is

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