because there is no answer its too hard! sorry:( haha
The number is 231.
8 x 7 = 56 Therefore, seven times larger than 8 is equal to 56.
21
The number is 45. The sum of its digits i.e. 4+5=9 Five times the sum of its digits i.e. 5 times 9 which is 45
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12 and 28
36
The number is 36.
There are seven digits: 8,000,000
539
45
The number is 54. The sum of its digits is 5 + 4 = 9. 54/9 = 6.