First: (X+3)(x+3) foil it.
Then distribute the 3x among the values and combine like terms
I do not get what the Question that you are asking is.
Answer:
The answer is
<h2>

</h2>
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula

where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(4,2) and (7,6)
The midpoint is

We have the final answer as

Hope this helps you
After each hour 60% ( or 0.60) of the drug will be present.
The equation is A = 100(0.6)^t where t = time in hours. (answer)