Answer:
Lia collects $ 37.5 , Phil collects $50.3 and Cam collects dollars $ 112.5 .
Explanation:
Let us assume that the dollar collect by the Lia be x .
As given
Lia, Phil, and Cam collect a total of 200.30 dollars for a holiday fundraiser.
Phil collects 12.80 dollars more than Lia.
Phil collects dollars = 12.80 + x
As given
Cam collects 3 times as much as Lia.
Cam collects dollars = 3x
Than the equation becomes
x + 12.80 + x + 3x = 200.30
12.80 + 5x = 200.30
5x = 200.30 - 12.80
5x = 187.5
x = $ 37.5
Thus
Lia collects dollars = $ 37.5
Phil collects dollars = 12.80 + 37.5
= $50.3
Cam collects dollars = 3 × 37.5
= $ 112.5
Therefore the Lia collects $ 37.5 , Phil collects $50.3 and Cam collects dollars $ 112.5 .