Can u plz tell the answer of opt math class 8

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.

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?