What is the simplified form of the cube root of x squared times the third root of x squared?

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

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.

How do i do this? i don’t understand