The number of visitors to a certain Web site triples every month. The number of visitors is modeled by the expression 900 3m​, where m is the number of months after the number of visitors was measured. Evaluate the expression for m= -2. What does the value of the expression represent in the​ situation?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total