A dvd player that costs a store $28 is marked up by 80% what is the sale price

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Find the solution of this system of equation -7x+y=-20 9x-3y=36