Which algebraic expression is equivalent to this expression?
(9x + 9) + (7x - 2)

a. 16x + 7
b. 18x - 5
c. 16x + 11
d. 25x - 2

Which statement best describes the polynomial

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7