Pi is defined as the ratio of the circumference of any circle to its diameter. As all circles are similar and therefore proportional in dimensions, pi is therefore always the same for all circles and is constant
Answer:

Step-by-step explanation:
Set up equation.




Answer:
Mode 66
Step-by-step explanation:
The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode!
Let three consecutive multiples of 7 be 7x,7x+7 and 7x+14
Answer:
(eduacted guess) 7 minutes, 30 seconds
Step-by-step explanation:
May not be correct but what I did was find the average of 6 and 9. You add the 6 and the 9 (15), then divide it by 2.