please explain you answer, theres 29 points on the line ya'll
================================================================
Ty is scuba diving. He is 15 feet below sea level. He descends 2.5 feet each minute. Which expression represents Ty’s location compared to sea level after 6 minutes?
A –2.5 + 6(–15)
B –2.5 – 6(–15)
C –15 + 6(–2.5)
D –15 – 6(–2.5)
