Ireally dont get this and i really need to get past it me

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Abox of chocolates cost $7 which equation relates the number of boxes sold parentheses x parentheses and total cost of the boxes sold parentheses y parentheses