The Tent Market sells two-person tents for $299 and three-person tets for $399. During May, 8 more two-person tents than three-person tents were sold for a total of $10,768 if a represents the number of two person tents and b represents the number of three- person tents, the following system of equations that can be used to find a and b a-b=8 299a+399b=10,768 How many total tents were sold?