PLEASE HELP!! i will mark as brainliest

13

Step-by-step explanation:

I just added the numbers together.

5+-5 is 0 because they are the same numbers but with opposite signs.

Next 12+-2 is 10 because it is like 12-2.

Next adding the last 3 to 10 we get 13.

The final amount of yards they have are 13.

I hope this helps:)

answer: i think it is (1,-2)

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.