the selling price of an item is $360 it is marked down by 10% but this sale price is still marked up from the cost of $270. find the markup from cost sale price

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

What is the measure of angle x? a.101 b.158 c.44 d.79