Can someone pls help first gets brainilest

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

If value of cos330° is √3/2 then find tan165°.