An emergency water reservoir has a water level of 150 feet. Due to losses (evaporation, small leaks, overflows, etc.), the level of that reservoir drops 2.5 feet every week.
a. Write an equation for the water level (h) after (w) weeks, if no efforts are made to refill the reservoir.
(Do not put a space in your answer.)
b. An alarm sounds when the level in the reservoir falls to 75 feet. Enter the number of weeks it will take for the alarm to sound if the reservoir is not refilled
weeks