Which of the following expressions is completely simplified?

For this case, we must indicate which of the listed expressions are completely simplified.

It is observed that in options B and D it can be simplified by applying distributive property.

While in option C, similar terms can be added.

Thus, option A is the only completely simplified expression.

Option A

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.