4.
x=2y
y=x-2
(Substitute)
x=2(x-2)
x=2x-4
-x=-4
x=4
Plug x=4 into both equations to find y and check
4=2y
2=y
y=4-2
y=2
(4,2)—> Blank 1:4 and Blank 2:2
5.
x=2y-3
x=2y+4
2y-3=2y+4
No solution —> Blank 1: NS and Blank 2: NS
I’m pretty sure the power is 4
Answer:
$420 U.S. dollars = $570.25 Canadian dollars
1 U.S. dollar = 1.36 Canadian dollars
Therefore, to find the answer you would multiply $420 by 1.36.
