2nd one maybe I’m not to sure srry
Rate = A ratio that compares two quantities measured in different units.
Unit Rate = A rate in which the second quantity in the comparison is one unit.
The 20th expression would be 80. Counted on my fingers xD hit 80 when i did 20 fingers. which means that if you put 20 as n, it should come out to 80, but it comes out to 84 by the answer you chose, so I'm wondering if the answer you chose was right, or if it was A
This will be D.Exponential decay hope this helps
Erm i could you explain more of the question we can't go by just this
