Astore has a sale on t-shirts and jeans, in which t-shirts cost $4 and jeans cost $15. if the store wants to sell more than $800 worth of t-shirts (t) and jeans (j) during the sale, which of the following inequalities represents that situation? a: $4t+$15j≤$800 b: $4t+$15j≥$800 c: $4t+$15j> $800 d: $4t+$15j< $800