math
posted by Anonymous .
18.Ms. Jones has a garden plot that measures 40ftX 20ft If she increases the garden by 4 ft on each side, by what percent has she increased the plot?
19. A cylindrical can of cleaner holds 1 L of liquid. What is its height if the diameter of the base is 10 cm?
20. Find the circumference of the circle with diameter 4 in.

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