C. -7.25 + 0.5(n) Let's plug in some numbers Let n = 2 -7.25 + 0.5(2) = -6.25 Let n = 3 -7.25 + 0.5(3) = -5.75 All the numbers match up when you substitute a whole number, therefore it is C. Let's check one last one, if n=4 -7.25 + 0.5(4) = -5.25 Let's check to see if this is true. -5.75 - 0.5 = -6.25 The -5.75 and the -6.25 are all numbers given for the equation. (in your picture)