Answer:
t=12
Step-by-step explanation:
Step 1: Subtract t from both sides.
−t+5−t=t−19−t
−2t+5=−19
Step 2: Subtract 5 from both sides.
−2t+5−5=−19−5
−2t=−24
Step 3: Divide both sides by -2.
−2t−2=−24−2
 
        
             
        
        
        
Answer:
k = 10
Explanation:
The initial polynomial is:

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

Therefore, we can solve for k as follows:

So, the value of k is 10
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given

Required
Evaluate 
We have:

Apply law of logarithm

Express 9 as 3^2

Evaluate the exponents

 .
.
So:


Substitute 


 
        
             
        
        
        
546 - 525 = 21
21 is 4% of 525.
Lisa gained a 4% pay increase.