A pаtient hаs been brоught tо the imаging department fоr a radiograph of his knee. Previously, the patient had a portable knee exam completed in the emergency department using 70 kVp, 2.5 mAs, and a 6:1 grid. In the x-ray room, the exposure will be completed with the image receptor in the bucky tray with a 12:1 grid. What new mAs will be required for the exposure in the department to compensate for the higher ratio grid? (rounded to the nearest hundredths)