Respond ASAP please I need this badly I will be giving brainlest thanks and all stars

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Anyone know? will mark brainliest if you're correct!

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