4a+6b is the answer you have to look at the variable so for a 4a-2a+2a and b there is just one variable so it’s 6
Answer:

Step-by-step explanation:
Given
Negative integer J
Required
Represent as an inequality of its inverse
The question didn't state if it's additive inverse or multiplicative inverse;
<em>Since the question has to do with negation, I'll assume it's an additive inverse</em>
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The inverse of -J is +J
To represent as an inequality (less than or equal), we have:

Solving further, it gives

Answer:
21
Step-by-step explanation:
yeah 2+2 is 21 thanks for the very nonexistent question
Answer:
and 
Step-by-step explanation:
Recall that
is a value of the function cosine for the special angles:
and
, then:
