... patterns.The first begins with 17 and adds 2; the sec-ond begins with 32 and subtracts 3.59. a. Two patterns alternate here. The first pat-tern begins with 10 and adds 2 to eachnumber to arrive at ... remain the same:DEF. The subscript numbers follow thisseries:1,1,1;1,1, 2 ;1, 2 , 2 ; 2 , 2 , 2 ; 2 , 2 ,3.84. c. There are two alphabetical series here. Thefirst series is with the ... Thisgives the series 17, 17, 20 , 20 , 23 , and so on.Every third number follows a second pat-tern, in which 3 is subtracted from eachnumber to arrive at the next: 34, 31, 28 .34. d. This is an alternating...