Situation: a 25 gram sample of a substance that’s used for drug research has a k-value of 0.1205
n0(zero)= initial mass(at time t=0)
n= mass at time t
k= a positive constant that depends on the substance itself and on the units used to measure time
t= time, in days
find the substances half-life, in days. round your answer to the nearest

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation:

the answer is 9 because the question is telling how much it be together.