Answer:
c) 3.5%
Explanation:
First, determine the difference between their old and new salary:
 $44,505 – $43,000 = $1,505 
Next, divide the raise amount by the old salary: 
$1,505 / $43,000 = . 035
To turn the decimal into a percentage, multiply by 100
0.35x100=3.5%