Billy read 2 books. He read the first one in one week with 25 pages everyday. He read the second book in 12 days with 23 pages everyday. What is the total number of pages that Billy read?
Choices:  A) 887pages  B) 656 pages  C) 435 pages  D) 451 pages  E) 232pages
Pages read in the first book in one week which is 7 days with 25 pages everyday.   25 *7= 
<gadget id="calculator">25 *7</gadget>
<output>175</output>
175 pages   Pages read in the second book in 12 days with 23 pages everyday.   23 *12= 
<gadget id="calculator">23 *12</gadget>
<output>276</output>
276 pages   Total number of pages read     175 + 276= 
<gadget id="calculator">  175 + 276</gadget>
<output>451</output>
451 pages   correct answer 451 pages
<result>D</result>
Billy read 2 books. He read the first one in one week with 25 pages everyday. He read the second book in 12 days with 23 pages everyday. What is the total number of pages that Billy read?