Answer: n squared - 1
Step-by-step explanation:
0 is the year Gabe is born. Gabe's sister is born in year 5 so B cannot be year 0. Gabe's mom was given a special coin year -20, and -20 doesn't equal 0 so A cannot be right
Answer:
x = -6
-18+4y=0 => 4y=18 =>y=18/4=9/2
Y=5
3x+20=0 => x=3x= -20=> x= -20/3
