We have a point and a slope, so let's use the point slope formula!

where
x1=4
y1=2
and m=3
So.. in this case, the starting amount is the 500mg sample... and the rate of decay, negative rate, is 1%, and at the time, the elapsed days is 0, to t = 0, P = 400
I believe the number of students they had last year are 360 students i hope this helps.
Answer:
First one-3
Second one-0
Last one-12
Step-by-step explanation:
If you would like to solve the equation - 2/5 * x + 6 = 8, you can do this using the following steps:
- 2/5 * x + 6 = 8
- 2/5 * x = 8 - 6
- 2/5 * x = 2 /*(-5/2)
x = 2 * (- 5/2)
x = - 5
The correct result would be -5.