Can anyone help me I really need it

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.

Ineed me i stuck and i don’t want to get it wrong

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?