Answer:
Step-by-step explanation:
3x-2y=10
5x+y=4
15x-10y=50
15x+3y=12
-13y=38
y=-38/13
Substitute for y
x=54/39
1*2^80= 1208925819600000000000000 or 1.2089258196×10^24
D. (-2, -11)
Since -2 - 9 = -11, it fits into the equation x - 9 = y, with -2 being "x" and -11 being "y".
And out of all the options, D is the only one that works.
Attached above
162
6+3 = 9
k = 18*9
k = 162