Burnet is on track to get two new businesses that are expected to give the city an economic boost.City Manager David Vaughn announced April 5 that a Tractor Supply store and a Marriott hotel both are set to build in Burnet. Both will occupy properties sold to them by the city’s Economic Development Corporation (EDC).Tractor Supply will build at State Hwy. 29 and Richard Sanders Pkwy. on the city…