Please help, I missed class and I don't know how to solve these types of equations. An answer with the steps/explanation would be helpful :)

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.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

2,10,-50 next two numbers geometric sequence