Can someone help me with question 1 and 2 please​

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1