Answer:
This year there were 1250 - 450 = 800 more burgers sold.
800/450 * 100 is about 178%.
x=3/22 ; y=-9/44
Step-by-step explanation:
1/2x+1/3=4
=>1/2x=4-1/3
=>1/2x=(12-1)/3
=>1/2x=11/3
=>22x=3
=>x=3/22....(1)
then,
3x+2y
2y=-3 . (3/22)
y=-9/44
Yes
XZ,X(-10,9)
Y(-4,8)
is
X2,YZ(14-1)=12
