During a drought, the water level of a lake changes -1 1/3 ft. pwr day. write and solve an equation to find out how long it takes for the water level to change -16 ft.

It takes 12 days for the water level to change -16 feet

Solution:

Given that  

During a drought, the water level of a lake changes feet per day.

Let assume number of days required for change of water level to -16ft = "x"

So change of water level in "x" days is:

As we assumed that change in “x” days in water level = -16feet

Hence it takes 12 days for the water level to change -16 feet

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.