Answer:
A
Step-by-step explanation:
given
= 
using the method of cross- multiplication then
8P = 42 ( divide both sides by 8 )
P =
= 5.25
Well, you already have the decay model, so just plug that in
Answer:
x=1.6
Step-by-step explanation:
.40=.25x
you move .25 to the other side which would look like this .40/.25=x and then you solve for x, which you would get 1.6.
<span>5-6n=2n+5 , 5 cancels out
-6n -2n = 0
-8n = 0
n =0</span>
It is B because yiu solve