I’m stupid I don’t even know 5th grade math

Answer:
Jan has 252 inches of fabric.
Step-by-step explanation:
there are 12 inches in a foot, you have to feet of red and 4 feet of green, this gives you 6 feet. there are 3 feet in a yard are 3 x 5 = 15. 15 + 6 = 21. Now since you know how many feet there are in total you can multiply that number by 12 since there 12 inches in a foot to get 252.
May I have brainliest please? :)