Monica’s school band held a car wash to raise money for a trip to a parade in new york city. after washing 125 cars, they made $775 from a combination of $5.00 quick washes and $8.00 premium washes. let x represent the number of quick washes and let y represent the number of premium washes. which system of linear equations represents the situation? 5x + 8y = 775 and x + y =125 5x – 8y = 125 and x + y = 775 5x + 8y = 775 and x – y = 125 5x – 8y = 125 and x – y = 775