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apologiabiology
I'm asuming you did a typo  from a previous quesiton  I see that it is a dollar sign
$12 per hour
for 15 hourse, just multiply $12 by 15 because per hour means per 1 hour
15 times $12=$180
answer is $180

SchwarzschildRadius
So,

Hank earns $12/hr.  If he works 15 hours, he will have earned 15 times $12 dollars.

15 * 12 = 180

Hank earns $180 for 15 hours of babysitting.

Here's a geometric sequence you can use to determine Hank's earnings.

[tex]12n[/tex]

Where "n" is the number of hours Hank babysits.

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