Mario invests $⁢1,500 in a savings account that earns 2% interest a year. He also plans to set aside $⁢50 cash a month. x is equal to number of years Savings account: f of x is equal to 1500 times 1 point 0 2 to the x th power Cash savings: g of x is equal to 50 times 12 x Which function represents the total amount Mario will save over x years?