Polynomials- Special Products

Some help would be nice. (Plz and thx)

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy. how much will she pay after the discount