write C++ program to solve

3. Decision-based Algorithm: A cell phone company offers a plan with 450 minutes of voice communications at a rate of $35.00/month. Any minutes over 450 are charged at a rate of 0.40 per minute. Write an algorithm that allows the user to input the number of minutes a phone customer used during a particular month. The algorithm should determine the monthly charge. (Do not worry about taxes and other cell phone fees.) Hint: You will need a decision statement that determines whether or not the user has exceeded his plan's minutes. The formula to calculate his monthly charge will differ slightly based on the result of this decision. **Turn in algorithnm