Answer:

Step-by-step explanation:
÷ 6
leave the fraction, change division to multiply, turn 6 upside down
=
×
( cancel 2 and 6 by 2 )
=
× 
= 
= 
Well I need more details for x can you screenshot? It’s usually x*0.20 but I need more details to help you
200 cm is 2 m so 40m/2m = 20. Thus she will have 20 pieces
This is a screen shot of an online calculator called mathportal.com it shows the work used to find the answer to this question
Hope this helped and have an amazing day :)
-yO mAmA