A purchasing agent has placed rush orders for a particular raw material with two different suppliers, A and B. If neither order arrives in four days, the production process must be shut down until at least one of the orders arrives. The probability that supplier A can deliver the material in four days is .55. The probability that supplier B can deliver the material in four days is .35.

What is the probability that both of the suppliers will deliver the material in four days? Since two separate suppliers are involved, assume independence.