C. 20% because 15 goes into 75 5 times, and to find the percentage you would divide 100 by that number, 5, to get 20. So he has gone 20%
400 because divide 60 by 15 in order to get 1% of the unknown number, which is 4. Then, just multiply 4 by 100 to get 100% of the number, which equals 400.
Answer:

Step-by-step explanation:
=> 
LCM = 24
=> 
=> 
All rectangles<span> are parallelograms. </span>
Answer:
$8
Step-by-step explanation:
Since he used $20
Each game cost $3 and he played 4 games (So 3 x 4 = 12)
20 - 12 = 8