The numbers increase by 4, 6, and 8. The nextnumber will increase by 10. So, it will be 30.12.Each figure adds a triangle and changes theorientation of the triangles. The next figure willhave five triangles with the same orientation asthe three triangles in the second figure.13.The numbers increase by 1, 2, 4, and 8, which arethe first four numbers in the sequence. The nextnumber will increase by the fifth number in thesequence, or 16. So, the next number will be 16 116 or 32.14.The numbers increase by 2, 3, 4, and 5. The nextnumber will increase by 6. So, it will be 18 16 or24.15.The numbers increase by }23}. The next number willbe 31}23}or }131}.16.The numbers are multiplied by }12}.The next number will be }116}3}12}or }312}.17.The numbers are multiplied by 23. The nextnumber will be 2543(23) or 162.18.The numbers are multiplied by 25. The nextnumber will be 6253(25) or 23125.19.Each arrangement of blocks is formed by adding alevel of blocks to the bottom. The numbers ofblocks in the sequence are 1, 5, and 14.
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