Let's go step by step:
I had 3
Mom gave 10. So, I have 3 + 10 = 13
Dad gave 30. So, i have 13 + 30 = 43
Then,
Aunt and Uncle together gave 100. So , i have 43 + 100 = 143
I had another 7, so now I have 143 + 7 = 150
So, i have:
150 dollars
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