She needs 78 pieces of wood 29 centimeters long. boards come in 6 meters in length. how many boards?

She would need 26 boards, it would be much less but there's a ugly remainder and unless you can combine those remainders you'd need less, but assuming you cannot combine them its 26 boards

The answer will be y=-5+0 because the slope is -5 and the it has to go through y-axis 0