If your surveys are the following: A. A survey of 110 teachers showed that 28 of them have a second job. <span>B. A survey of 90 teachers showed that 27 of them have a second job. </span> <span>C. A survey of 70 teachers showed that 21 of them have a second job. </span> <span>D. A survey of 80 teachers showed that 32 of them have a second job. </span> Then the answer is B and C