Alexandra bought 8 magazines at the bookstore on Friday. On Saturday, she went back and bought 12 more. Sunday morning, she saw that the store was having a sale and she bought four times the number of magazines she did on Friday. Later that day she discovered that her dog had chewed up 4 of the magazines. How many magazines does she have now?
By adding Friday and Saturday, Alexandra bought 12+8=
<gadget id="calculator">12+8</gadget>
<output>20</output>
20 magazines.
On Sunday she buys 8*4=
<gadget id="calculator">8*4</gadget>
<output>32</output>
32 magazines.
Before her dog got to them she had 12+8+32=
<gadget id="calculator">12+8+32</gadget>
<output>52</output>
52 magazines.
After her dog chewed up some she had 52-4=
<gadget id="calculator">52-4</gadget>
<output>48</output>
48 magazines.

<result>48</result>