slope intercept form is y=mx+b
so solve for y
2x+y=-3
minus 2x both sides
y=-2x-3
-2y=6+4x
divide both sides by -2
y=-3-2x
y=-2x-3
I think it would be the last one 36
Probably feet or meters depending on where he is. I would go with feet
Answer:7 quarters and 6 dimes
Step-by-step explanation: