Benito is selling t-shirts for $8 each for his school fund-raiser. so far, he has sold 16 t-shirts. how many more does he need to sell to reach his goal of $200 in sales?

three of these equations solve for the number of t-shirts, t, he still needs to sell to reach $200 in sales. which equation does not?
a: t=9
b: 8(t+16)=200
c: 8t+128=200
d: 8t+16=200