Answer:A. 10x. B. -2yz
Step-by-step explanation:
A. 4x+7x=11x
11x+(-x) = 11x-1x=10x
B. -5yz+yz=-4yz
-4yz+2yz=-2yz
Answer:
6/15-3/10
3x2/15=6/15
D
I looked it up your welcome
18 of them are boys
40% = 40/100 = 0.40
0.40 × 45 = 18
