Pls which ever ones you know

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?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Evaluate the expression. (9 + 5)(3 + 2)0