I need help with this please

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?

Find the nonpermissible replacement for binthis expression. b2/5b +5

10x − 5y + 14 = 0 whats the answer pls