Answer:
x = ln(21)/ ln(4), Decimal Form: 2.19615871
Step-by-step explanation:
This is pretty complex math for middle school with logarithms and what not. Make sure you typed the problem in correctly. If you did, I guess that's your answer.
You would just need to make an inequality from the description. You would make "x" the number. The answer would be "x-4>-1"
Answer:

Step-by-step explanation:
Recall that
.
Therefore,
.
Answer:
you only put a parenthesis around a number if it is negative
Step-by-step explanation: