Answer:

Step-by-step explanation:
To isolate r, we're going to need to do some algebraic manipulation.

Multiply both sides by r:

Divide both sides by a:

Hope this helps!
Hi!
To solve exponental equations, multiply the exponents.
4·5=20
The answer is

Hope this helps! :)
-Peredhel
True.
E.g. (x-1)(x-2) versus 100(x-1)(x-2)
They have same roots of x= 1 or 2, but the second equation is 100 times stretching of the first one vertically
Answer:
30
Step-by-step explanation:
5+5+5+5+5+5 =
30
60 minutes in an hour. 60-45=15
4:15
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hope it helps
(sorry I didn't know how to explain it)