Katrina saw an ad that said if she signed up for her local recycling program, she could earn $5.00.  When she signed up, they told her for every friend that she referred, the friend would receive $5.00 and she would receive another $5.00 per friend.  That day, she had 5 friends sign up and another 7 friends by the end of the week.  How much money in total did she and her friends make?
She signed up 5 friends, then an additional 7 for a total of 5+7 =<<5+7=12>>12 friends
Each friend received $5 so 12*5 = $<<12*5=60.00>>60.00
And she received $5 for each friend so 12*5 = $<<12*5=60.00>>60.00
Her initial reward was $5 and her friends made $60 for signing up and she received $60 when they signed up for a total of 5+60+60 = $<<5+60+60=125.00>>125.00
#### 125