F(x) problem please solve just answer needed no workings necessary

Graph the equation. select integers for x

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.