What is the simplified expression for this ?

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

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.