Answer:
$262.50
Explanation:
It is a poorly worded question.
25 Percent of the 500 was from his birthday money.
500 * .25 = 125
That leaves 500-125 = 375
He saved 30 % of the 375 from his allowance
375 * .3 =112.50
375-112.50 =262.50
The rest is from mowing lawns.