Need help on question 31 & 32 ill give extra points :)

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

What is the rate of change of a line that passes through (2,-5) and (6,-2)?