A study was done on SAT scores of 11th grade students where it was found that the mean was around 1000 with a standard deviation of 200. What percent of students scored higher than a 1200?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?