Help with geometry pleasee

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?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get