Answer: 9/20
Step-by-step explanation:
9/10 is given as the fraction of the crates filled with animals , 1/2 of this fraction holds dog , that is
1/2 of 9/10
= 1/2 x 9/10
= 9/20
Therefore the fraction of the total number of crates holding dog is 9/20
D. 7x2+3y2+4x+4x2−4y+2 is your correct answer
-3x² + 3y² + 4x + 4x² - 4y + 2
Add like terms.
x² + 3y² + 4x - 4y + 2
So the answer is D.