Whats the answer :))

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.