Help please !
The turnout at a concert depends on the number of posters put up around town, so the turnout is a function of the number of posters that are hung. If this function is called T(p) use the formula below to compute T(9), the turnout at a concert that was advertised using 9 posters.
T(p)=60p-p^2

Question

Help please ! 
The turnout at a concert depends on the number of posters put up around town, so the turnout is a function of the number of posters that are hung. If this function is called T(p) use the formula below to compute T(9), the turnout at a concert that was advertised using 9 posters. 
T(p)=60p-p^2

anonymous · Answer

$$T(9)=60\cdot 9-9^2$$

nurali · Answer

T(p) = 60p - p2 
for T(9), replace p with 9 
T(9) = 60*9 - 9*9 
T(9) = 540 - 81