A café only sells two types of sandwiches, turkey and steak. The café charges $5 for turkey sandwiches and $6 for steak sandwiches. Last month, the café sold a total of 535 sandwiches. The café sold $2890 worth of sandwiches.
 How many TURKEY sandwiches did they sell?
 Write a system of equations and SOLVE for turkey!
 SHOW your work.
 T = number of turkey
 S = number of steak