HELP ME PLS?

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?