Answer:
Mary originally had $105
Step-by-step explanation:
Suzy's Money = s
Mary's Money = m
After Mary received half of two-thirds of her money, she had 210.
1/2 of 2/3 = 1/3
m + 1/3*m = 210
1 1/3m = 210
m=157.5
Mary originally had $157.50
2/3 * 157.5 = 105