Rates for having a manuscript typed at a certain typing service are $10 per page for the first time a page is typed and $5 per page each time a page is revised. If a certain manuscript has 100 pages, of which 30 were revised only once, 20 were revised twice, and the rest required no revisions, what was the total cost of having the manuscript typed?	Choose the most appropriate option
A) $1250
B) $1350
C) $1150
D) $1360
E) $1370
50 pages typed 1x   30 pages typed 2x (original + one revision)   20 pages typed 3x (original + two revisions)   50(10)+30(10+5)+20(10+5+5)=500+450+400= 
<gadget id="calculator">500+450+400</gadget>
<output>1_350</output>
1350   Answer - $1350
<result>B</result>
Rates for having a manuscript typed at a certain typing service are $10 per page for the first time a page is typed and $5 per page each time a page is revised. If a certain manuscript has 100 pages, of which 30 were revised only once, 20 were revised twice, and the rest required no revisions, what was the total cost of having the manuscript typed?