Answer:
a) 
b) 
Step-by-step explanation:
Use logarithm properties:

Then
a) 
b) 
Answer:9 times 10 equal 90 $
Step-by-step explanation:
Answer:
D. Class frequency divided by the total frequency.
Answer:
If this is asking for the set:
Z = {-3, -2, -1, 0, 1, 2, 3}
Step-by-step explanation:
Z is the set of all integers and it appears that you are being asked for the values in the set Z that are within the range: -3 ≤x ≤ 3