Answer:
$78
Explanation:
If she had 60% of her money left after buying the present, that means she spent 40% of her money on the present (since 60%+40%=100%)
So we know 40% of her money is $52.
Write this as a ratio:
40% : $52
Divide both sides by 40 to find what 1% of her money is:
40% : $52
(40/40)% : $(52/40)
1%:$1.3
Now, remember we are being asked to find how much she has left, which we are told is 60% of her original money, so since we know what 1% of her money is, we are gonna multiply both sides by 60 to find 60%:
1%:$1.3
(1x60)%:$(1.3x60)
60%:$78