Evaluate the function for x = 2: f(x)=7x-5
a. 9
b. 19
c. -9
d. -19

i'm completely lost

Solve for x, y, and z. show all steps.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Consider circle c with angle acb measuring 3/4 radians. if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.