When assessing an oblique foot x-ray you note that the image appears blurred with a lack of sharpness of the cortical outlines evident. Radiographic contrast and density appear acceptable. You determine that you need to retake the image. The factors used to take this image were: x-ray taken without a grid, small focal spot, source to image distance of 180cm, kV of 70, mA of 9, and time of 2 seconds. For the x-ray machine that you are using the possible range of mA acheivable is from OmA up to 300mA. The possible range of time is from a minimum of 0.1 seconds to a maximum of 5 seconds. What would be the best value of mA to be used for the new image? Please answer to 1 decimal place, do not use units. Answer: