Answer:
(1.2×3)500
Step-by-step explanation:
the 1.2 factor will be multiplied by the hours given then times that by the starting amount of bacteria.
I don’t really know what the question is looking for but -1.8 C > -2.1C
I believe the answer is 24 times
hope this helps!
Step-by-step explanation:
Recall that

so we can write our original equation as
or

Let
so our equation becomes

which gives us two roots:
and
.
This is equivalent to
and 
True. because a negative times a positive will equal out to a negative