Need help with a quesiton? (100 because nobody answers ever)

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

What expression is equivalent to (84+16)