Tanya is teaching at school. She earns $15 for every hour and an additional $5 per day if she teaches more than 3 classes. On Monday she teaches 4 classes for 5 hours, and on Wednesday 2 classes for 2 hours. How much did Tanya earn for these two days of teaching?
Tanya worked for 5 hours + 2 hours = 
<gadget id="calculator">5+2</gadget>
<output>7</output>
7 hours.
She earned therefore 7 hours * $15/hour = $
<gadget id="calculator">7*15</gadget>
<output>105</output>
105.
On Monday she taught more than 3 classes, so she got a bonus and in total earned $105 + $5 = $110.

<result>110</result>