What is the measure of angle a

the one side is 39° and the things are
a 51 degree
b 141 degree
c 129 degree
b 219 degree

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c. q-p d. p-q

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0