Ali has a small flower shop. He sold 4 flowers on Monday, 8 flowers on Tuesday and on Friday, he sold double the number of flowers he sold on Monday. How many flowers does Ali sell?
Combining Tuesday and Monday, Ali sold 4 + 8 = 
<gadget id="calculator">4+8</gadget>
<output>12</output>
12 flowers.
On Friday, he sold 2 * 4 = 
<gadget id="calculator">2*4</gadget>
<output>8</output>
8 flowers.
Altogether, Ali sold 12 + 8 = 
<gadget id="calculator">12+8</gadget>
<output>20</output>
20 flowers.

<result>20</result>