I need help on this for math class dont mind how i answered a

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

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?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?