Evaluate the expression -5(-2)-3(-4) answer this and you will be famous on tiktok

Iam so stuck. what is the worked out answer for this question?

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function