Which single expression is equivalent to sin(ø + pi)? help pls

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.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

The measure of angle 0 is 600 degrees