Consider the following premises. It is snowing or Linda is fast. If Linda were fast, then Mary is driving a car. Mary is driving a car if and only if it is raining. If it snows, then it is raining. Can we infer the following from them? Mary is driving a car.
 From the fact that Mary is driving a car if and only if it is raining we can infer that if it rains, then Mary is driving a car. From the fact that if it snows, then it is raining, and that if it rains, then Mary is driving a car we can infer that if it snows, then Mary is driving a car. Finally, from the fact that if it snows, then Mary is driving a car, that if Linda were fast, then Mary is driving a car, and that it is snowing or Linda is fast we can infer that Mary is driving a car. Therefore, the answer is yes.