Abigall Henderson has $1890.00 budgeted for spending money on an upcoming trip to Country A and Country B. Country A's currency is trading at $1.20 per currency A, and Country B's currency is trading at $1.50 per currency B. She plans to spend more time in Country A, so she wants to have four times as much of currency A as currency B. Set up and solve a system of equations to model this problem, and explain what the answer means in practical terms. Complete the equation that represents the total cost of purchasing currency. Let x be the number of currency A and y the number of currency B. x1.2+y1.5 1890.00 (Do not include the $ symbol in your answers. Do not simplify. Use integers or decimals for any numbers in the equation.) Complete the equation that represents the relationship between the number of currency A and number of currency B. = 0 (Do not simplify. Use integers or decimals for any numbers in the equation.)