Answer:
i do not know
Step-by-step explanation:
sorry
It is C) 110° I just did it on USA Testprep
13, 21, 29
the difference is 8
so add 8 to last numbers
4) 7k² + 9k
= k(7k + 9)
5) x² - 25
= (x)² - (5)².
(a² - b²) = (a+b)(a-b)
= (x - 5)(x + 5)
