Plz help if correct ill give brailiest

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

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount