Orange​ juice, a raisin​ bagel, and a cup of coffee from​ Kelly's Koffee Kart cost a total of ​$3.60. Kelly posts a notice announcing​ that, effective the following​ week, the price of orange juice will increase​ 50% and the price of bagels will increase​ 20%. After the​ increase, the same purchase will cost a total of ​$4.50​, and the orange juice will cost twice as much as coffee.
A. Find the price of each item before the increase.
B. What was the cost of a glass of orange juice before the increase?
C. What was the cost of a raisin bagel before the increase?
D. What was the cost of a cup of coffee before the increase?