Let x be the initial amount of money. We know that mum spent 2/3 of this amount, so she's left with
Of this remainder, only 1/4 was deposited, which is
And this amount equals 20, so we have
A company rents out 18 food booths and 21 game booths at the county fair. The fee for a food booth is $150 plus $8 per day. The
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