What is the value of the output for the function, g(c) = 19 c2, if the input is 4?

Answer 1

g(c)= 19 x c^2 ?

is c squared?

if not

g(4)= 19 x (4x2)
g(4)= 19 x 8
g(4)= 152

if C is squared, i am sure you can now derive the answer with this example.
simply plug in the input (4) for c