He gave away 9 (20 x (3/7) =9) so 21-9=12
1/8 or D, because 1/2 divied by 4 equals 1/8. Hope I helped! I need some help on one question for me.
Answer: 1.2metres
Step-by-step explanation:
Five years ago, tree was 4.9m
Today, tree is 6.1m
Subtract 4.9m from 6.1m
Tree has grown by 1.2m
You would now have to pay her $9.85