If a cube has a volume of 800 cubic units then what is the length of the edge of this cube ?

Step-by-step explanation:

From that moment forward, the medicine concentration drop by 30% each hour. It means that the rate at which the medicine concentration is dropping is exponential. We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

P represents the initial concentration.

A represents the final concentration after t hours.

t represents the number of hours.

r represents the rate

From the information given

P = 120 mg/L

r = 30% = 30/100 = 0.3

The expression becomes

C(t) = 120(1 - 0.3)^t

C(t) = 120(0.7)^t