Kathleen receives a weekly allowance for completing all of her chores. During middle school, her allowance was $2 more than $8 but during her senior year,  her allowance was $5 more than twice her middle school allowance. What is the percentage increase in Kathleen's weekly allowance?
Kathleen's allowance in middle school was $8 + $2 = $
<gadget id="calculator">8+2</gadget>
<output>10</output>
10.
Twice her middle school allowance is $10 x 2 = $
<gadget id="calculator">10*2</gadget>
<output>20</output>
20.
So, Kathleen's senior year allowance is $20 + $5 = $
<gadget id="calculator">20+5</gadget>
<output>25</output>
25.
Her allowance increased by $25 - $10 = $
<gadget id="calculator">25-10</gadget>
<output>15</output>
15.
Kathleen's percent increase in her weekly allowance is $15/$10 x 100% = 
<gadget id="calculator">15/10*100</gadget>
<output>150</output>
150%.

<result>150</result>