If A is equal to 30, and A+B equals 42. That means B equals 12. So, if the value increased with the same rate of change, it would be 54. This is because 30 plus 12 is 42. 42 plus 12 would equal 54.
Answer: 14
Explanation: The radius is half of the value of the circumference.
105 is the product of 15 and 7.
1 hour is 15m
2 hour is 30m
3 hour is 65m
4 hour is 80m
