Answer:
Step-by-step explanation:
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Answer:
9
Step-by-step explanation:
we know by definition that

so now we evaluate

and if we want to do an extra step

which works.
Answer:
<h2>7.5$</h2>
Step-by-step explanation:

Y=3x+10
10 represents the fee
X= amount of hours
3 is the cost per hour.
The amount of money found under the couch cushion is $1.99