He gets an average between 80 and 90
It is between these two values
So it could be 80 or higher but it must be 90 or belowe so it can be equal to 80 or above and it can be equal to 90 or below
This gives two inequalities 80 ≤ x and x ≤ 90
This can be written as 1 inequality 80 ≤ x ≤ 90
≤ this means less than or equal to the one that points the opposite way would be greater than or equal to think of it as a number line pointing right is positive meaning the numbers get bigger, getting greater pointing left is getting smaller so it gets less and less
19539 bacteria will be present after 18 hours
<u>Solution:</u>
Initial value of bacteria N = 6000
Value after 4 hours
= 7800
<em><u>The standard exponential equation is given as:</u></em>

where
N is amount after time t
No is the initial amount
k is the constant rate of growth
t is time
Plugging in the values in formula we get,

Solving for "k" we get,

Taking "ln" on both sides, we get


On solving for ln, we get k = -0.0656
The equation becomes, 
Now put "t" = 18,

Hence the bacteria present after 18 hours is 19539
Answer:
(c) the supplements of congruent angles are congruent.
Step-by-step explanation:
Since JKL and JLK are respectively the supplements of angles 3 and 4, we can use the justification
(c) the supplements of congruent angles are congruent.
Thomas had 5/12 of a pie. his friend, Katelyn ate 1/6 of his pie. How much is left?
Answer:
hmmmmmmmmm
Step-by-step explanation:
$12?
i think