Macrezelcubalango Macrezelcubalango Math Answered Bianca has some P 10-coins and P5- coins. The total amount of these coins is at most (5) P900. What is the highest number of P 5-coins, if there are 50 pieces of P10 coins? A. y s80 C. y s70 B.y > 80 D. y > 60