Damarius and her brother andrew are sharing the $35 cost of a gift for their mother. damaris has $56 in her piggy bank. she is willing to contribute 3/8 of the amount of money she has in her piggy bank. how much money must andrew have in his piggy bank in order for them to have enough to buy the gift.

Amna is the fastest typist

Explanation:

Amna:
15 mins = 710 words
1 min = 710/15
1 min = 47 word

Sara:
18 mins = 810 words
1 min = 810/18
1 min = 45 words

Uzma:
20min = 780words
1 min = 780/20
1 min = 39 words

Therefore, we can see that Amna is the fastest typist out of the three.