Answer:
$7.50
Step-by-step explanation:
Well 21 times 2 is 42 and 1/3 of 21 is 7 so 42+7 is 49. hope this is right
Answer:

Step-by-step explanation:
OK, so basically I'm pretty sure that you add all of them together and put it as a fraction over 3 so basically
then simplify it into 
Answer:

Step-by-step explanation:
