The answer is for your paper is 21
Hey there, all you do is multiply 20 by 20, 20×20=400. Therefore, the answer is 400 square feet.
Answer:
7x²-12x-10
Step-by-step explanation:
(5x²-8x+1) + (2x²-4x-11)
combine like terms
7x²-12x-10
Let the line segment BD be x, then sin A = x/15
or, x = 15sinA
Also

The last option