In a class of 20 students, 10 study Spanish, 8 study French. 5 study neither Spanish nor French. How many students study both Spanish and French?

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 could explain what happened when the time was equal to 120 minutes

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents