What is the measure of each interior angle of a regular octagon

Well, first there are eight sides and the total sum of the interior angles together are 1080 So each angle is an obtuse angle measuring exactly 135°

So the sum of all the interior angles of a octagon is 1080. A octagon has 8 sides/angles. So you have to divide the sum of all the angles by the number of sides/angles. Which is 1080 divided by 8. The answer to 1080 divided by 8 is 135.

      So the answer is 135.
      Hope this helps.                                       

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )