If a
1
=
9
a
1
​
=9 and
a
n
=
−
3
a
n
−
1
a
n
​
=−3a
n−1
​
then find the value of
a
5
a
5
​
.

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. monthly temperatures: 63 degrees upper f comma 67 degrees upper f comma 71 degrees upper f comma 75 degrees upper f comma and 79 degrees upper fmonthly temperatures: 63° f, 67° f, 71° f, 75° f, and 79° f