If the water level at the lake continued to change at the same rate for 3 months in a row explain how you could estimate the total change in the water level at the end of the 3 months period.

  Multiply the 1-month change by 3 to get the 3-month change.

Step-by-step explanation:

You could add up the changes for the three months. Your problem statement tells you to assume they are the same:

  3-month change = (1-month change) + (1-month change) + (1-month change)

  3-month change = 3×(1-month change)

Multiplication was invented to simplify repeated addition.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

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the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.