Aloha!
To solve this equation there is only one step! This is how to figure out and find the answer.
Step 1. Multiply $12,000 and .25
And the answer you get is D.) $3,000
Note: How I got .25 is changing 25% into a decimal by multiplying it by 100 (or you could just add a decimal in-front of the number.)
I hope this helps!:)