Answer: The amount of is changed by $38.
Explanation:
It is given that Mrs. Armour bought 7 pairs of socks for $3 each, and a sweater for her dog for $12.
The cost of 1 pair of socks is 3. So the cost of 7 is,
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The cost of 7 socks is $21.
She purchase 1 sweater for $12.
Total amount she spent is,
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It means after purchasing the socks and sweater the total amount is reduced by $33.
It is given that she found a $5 bill on sidewalk. It means the total amount is increased by $5. Hence the total change in the amount is,
\(\$33-\$5=\$28\)
Therefore, the amount of Mrs. Armour had is reduced by $28.
