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1) Is the UPC Code Valid? UPC Number 02035712 2682 Underline the odd positions 0+0+5+1+2+8 =16 Add them up 0 20357 12268 2 16(3) = 48 Multiply by 3 2+3+7+2+6+2=22 Add the even positions up 48 + 22 = 70 Add the two 2) 012 3 4 5 6 7 8 9 0 5 3) 671860013624 4) 23567128942? Credit Card System: . Add the digits in the odd-numbered positions and double this total. . Add the number of odd-position digits that are more than 4 to the total. . Add the even-position digits. . Choose a check digit that makes this calculation total a number whose final digit is 0. DoNotTrackMe Masked Card 5529 4203 5061 5465 CVC: 348 EXP: 12/14 BILLING ADDRESS: 280 SUMMER ST. MasterCard (USE ANY NAME) BOSTON. MA 02210 5) VISA VISA GOLD 4000 0807 0620 0002 00/ 00-00/00 ROBERT SCHUMANN 6) 7) What is the check digit for the Visa Card 5529 4203 5061 546d