Hi :)
10, 100 Afghani Afghani (currency name) is $1212 USD with the conversion you provided. Today it's like $117.41.
Answer:

Step-by-step explanation:
Factorise the numerator and denominator
8a² - 2 ← factor out 2 from each term
= 2(4a² - 1) ← 4a² - 1 is a difference of squares
= 2(2a - 1)(2a + 1)
4a² + 4a + 1 ← is a perfect square
= (2a + 1)²
Thus

=
← cancel (2a + 1) on numerator/ denominator
= 
= 
We know that
the angle MOP is equal to arc MNP because is a central angle
the answer is
angle MOP=126°