the average of 10 numbers is 7 . if each number is multiplied by 10 , then what is the average of the new set of numbers ?
the sum of the ten numbers is 7 * 10 = 70 if each number is multiplied by 10 , the new sum is 10 * ( 70 ) . the average is then 10 * 7 = 70 the answer is c .
multiply(10, 7)