If LN = 12x + 16, what is the length of Line segment L N in units?

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

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Can someone me out here number 4 plz