Please help it’s timed

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

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top