Combine like terms

7a^2+ 10a - За - 2а2^2

5a^2+7a

Step-by-step explanation:

You combine things based off the variable and exponent. So if  they have the same variable and exponent, you put them together. 7-2=5 and 10-3=7 so your answer is 5a^2+7a

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step-by-step explanation:

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

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

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.