Hi there!
Since a decimal is a portion of 1 we can simply put a 100 in the denominator to form it into a fraction.
By doing this, we get the fraction 29/100.
Since there is no simplifying we can do for the fraction this is it's final form!
Your answer would be 0.29 = 29/100.
The difference starts off by 7. Then it continues to double. Then the answer is 14, 28, 42. The answer doubles every time.
It would change to 3(2+6) and then you would just multiply 3 and 8. the answer is 24.