What is 13÷1/3 converted to decimal form

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?

Can some one explain this i got sent this. is this a threat i’m scared

With number 11 ( show how you got the answer)