Pls help fast.

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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.

The volume of a cube is 8 in to the 3rd power. how long is each side?