What is the length of ab?

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.

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

Solve the system of equations. x=-2y+1 and x+2y=9. show work