Man's pencil is 8.5 long. ted's pencil is longer. write a decimal that could represent the length of ted's pencil?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Tan198=asin164=? how to solve this? ?