That one is way to hard bru i respect u trying to get the awnser
Answer:
A - Highest is 27
Step-by-step explanation:
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Answer:

Step-by-step explanation:
Given

Required
Determine an equivalent expression
Express 81 as 

Apply law of indices






Hence:

Answer:
40%
Step-by-step explanation:
40-24=16
16/40 ×100 =40%
The correct answer is letter B, (6,-1).
When you substitute this ordered pair on the equations, you would found out is the correct one.