Answer:
33
Step-by-step explanation:
3^2+3^2=18
2^2+2^2=8
2^2+2^2=8 -1=7
18+8+7=33
hi
y=15 when x=-3
Because,
y= -2x+9
= -2(-3)+9
= 6+9
=15
so,
y=15