An irregular polygon is shown below: Image of irregular polygon with length of 8 units and height of 3 units labeled on left side. Top side length of 4 units, the side adjacent to it on the right is 1 units.

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Well first you have to cut the polygon into 2 pieces. I would cut from the 1 unit line down. Multiply 3 x 4, which equals 12. The other piece is 8 square units because the other side is 3 units. So the 2nd piece side is 2 units. The bottom is 4 units long. Multiply 2 x 4=8. 12+8=20. Answer is 20 squared units. :)

Step-by-step explanation:

it is b)

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step-by-step explanation:

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.