Need help !! Due today

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x