Use the slopes to determine if the line between the points (3,5) and (-2, 7) is parallel, perpendicular or neither to a line that passes through the points (10,5) and (6,15)

For the equations below which statement is true ?

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Using elimination, what is -4x+2y=-12 4x+8y=-24