Answer:
D
Step-by-step explanation:

Constant is the number that cannot change the value
Im not sure..but you can copy it
Answer:

Step-by-step explanation:
Given that, a <em>regular octagon </em>is to be constructed.
To find:
Each angle in the octagon = ?
Solution:
We know that a regular triangle (polygon with 3 sides) has an interior angle of
.
And a regular quadrilateral (square) has an interior angle of
.
Therefore, formula for interior angle of a regular polygon with
number of sides can be given as:

For an octagon, we have
.
Value of Interior angle in a regular octagon:

Kindly refer to the attached image for the angle of 
10(the number of tests) divided by 5(the amount of weeks)=2. That is 2 tests every week. 2x7 weeks is 14 tests.
Or this could be a trick question and he could have only had tests for 5 weeks.
Answer:
25.13
Step-by-step explanation: