7x to the third power - 7x to the second power =?

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.

1: 4 if the wew 35 surfboards at the beach how many were short boards?

What is the difference between the equations of a vertical and a horizontal line?