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Answer:
The card was worth $160.
Step-by-step explanation:
It is given that:
Percent of gift card used = 42%
Cost of groceries = $67.20
Let,
x be the total amount on gift card.
42% of x = 67.20
[tex]\frac{42}{100}x=67.20[/tex]
0.42x = 67.20
[tex]\frac{0.42x}{0.42}=\frac{67.20}{0.42}\\x=160[/tex]
Therefore,
The card was worth $160.