Answer:
Pattern With Next 2 Terms: –243, 81, –27, 9, -3, 1
Pattern Rule: Start at -243. Divide by -3 each time.
Answer:

Step-by-step explanation:
Using the rule of exponents
with n > m
=
, thus
=
=
= 
Number 13 is 40 in
number 14 is 2.5
16:24 students made at least 80% on the test. The question is what is the ratio of students who scored below an 80% to the total number of students. 8:24 would be the right answer, but since it is asking for the answer in the simplest form, it would be 1:3.