Nour drove from the dead sea up to amman, and her altitude increased at a constant rate. when she began driving, her altitude was 400 meters below sea level. when she arrived in amman 2 hours later, her altitude was 1000 meters above sea level.
let a(t) denote nour's altitude relative to sea level a(measured in meters) as a function of time t (measured in hours).
write the function's formula.

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.