A classroom has grade twelves (5 females and 8 males) and grade elevens (6 females and 5 males). If the teacher randomly chooses a student at random, what is the probability that it is a female or a grade eleven?

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

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.