Step-by-step explanation:
You're going to break√12 into ✓4 and √3 because 4*3 = 12. Square rooting 4 will give you two, and now you can add since the argument of the roots are the same.
Answer:
15 meters
One side is 2.5 meters, so if they're all the same then you would multiply that by 6
24.95 + 8.04 = 32.99
Christine paid $32.99