Solve each problem using Polya's 4-step problem solving strategy. 1.Iza earned P7,800 for doing 3 hours of office work and 2 hours of field work. However, she gets P8,200 if she works 2 hours of office work and 3 hours of field work. What is the rate per hour of Iza for doing office work and field work? 2.Ed's purse contains P10 coins, P5 coins, P1 coins, and P0.25 coins. How many of each kind does Ed have if his purse contains a total amount of P20.50