Please help! I don’t really have a grasp on word problems and they tend to stress me out a lot.

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?