Who can answer this question for me please

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15