For the Regular Decagon below identify both the sum of the interior angles and the measure of each interior angle. Show all mathematical reasoning or theorems used.

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

How many terms does the polynomial x^2 y^2 have