I need to find X and Y

Can someone pls help me

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?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

What is mean median mode and range?