Annabelle is saving for a phone that costs $400. She already has $80 in her savings. Her first job, where she earns $10 per hour, pays her for 20 hours of work. She is also paid for 15 hours of work at her second job, where she earns $5 an hour. In dollars, how much money does Annabelle still need to save?
Subtracting Annabelle's initial savings shows that she still needs to save $400 - $80 = $
<gadget id="calculator">400-80</gadget>
<output>320</output>
320.
From her first job, she earns $10 * 20 hours = $
<gadget id="calculator">10*20</gadget>
<output>200</output>
200.
From her second job, she earns $5 * 15 hours = $
<gadget id="calculator">5*15</gadget>
<output>75</output>
75.
She therefore still needs to save $320 - $200 - $75 = $
<gadget id="calculator">320-200-75</gadget>
<output>45</output>
45.

<result>45</result>