Which graph represents the solution set for the system 2x+5y < (or equal to) 9
and 3x+5y < (or equal to) 9

Since both inequalities has less than sign the shaded portion should be below both lines and the lines should be dotted lines. So the shaded portion in graph B satisfies the equation but the lines are not dotted.
Check the ones you could not upload and see if any of them has the same shaded portion as graph B and uses doted lines.

Siciuenckwk the answer