How do I just watch an ad? I don’t see any “Watch an ad” button?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

Can some one me with these questions