Answer:
Step-by-step explanation:
2x+y=1---------> y=-2x+1
x-2y=3
2) x-2(-2x+1)=3
x+4x-2=3
5x=5
x=1
3) 2x+y=1 when x=1
2(1)+y=1
2+y=1
y=1
the answer is (1,1)
B
because its something thats important and needs to be done
1 = 144
2 = 80
3 = 192
4 = 1209.6 or 1209
5 = 375
13) 76
14)76
15)90
16) wat is the shape
