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

This does not make sense

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post