An elevator descends into a mine shaft at the rate of 10 m/min. If the descent starts from 25 m above the ground level, how long will it take to reach -475 m. *

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account