Find an ordered pair to represent in the equationā vec a =2 vec b + vec c if vec b =(6,3) and vec c = (-4,8)

The system of equations graphed below has how many solutions?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Afarmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. each bag of soil covers 20 square yards. how many bags should the farmer purchase? (4 points) 1 bag 2 bags 3 bags 4 bags