Answer:
6.5 inches
Step-by-step explanation:
Take the total 9.62 inches
Remove the 3.12 inches from the second week and there is your answer!
The complete table will be:

<u><em>Explanation</em></u>
Suppose, the number of sit-ups in Sunday is 
Mean is the simple average of some numbers. <u>For finding the mean number</u> of sit-ups per day, we need to <u>divide the 'total number of sit-ups' by the 'total number of days'</u>.
Here the total number of days is 7 and the total number of sit-ups for 7 days 
Given that, the mean number of sit-ups per day is 100. So, the equation will be...

So, the number of sit-ups you have to do Sunday is 175.
11.5 * 2.3 = large door size
large door size / 12 = large door size in feet
large door size in feet / 10 = how many large doors can be cut from the board. (you have to round it down if there's a decimal- no 1/2 doors.)
Answer: 17 cm
Step-by-step explanation:
84 - 25(2) = 2x
84 - 50 = 2x
34 = 2x
x = 17
17 cm
-(11,14,25) is the correct answer. the two shorter sides must add to a longer distance than the longest side.