Need now 10 points math questions down ! 2 pictures plz answer quick

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.

Ineed i been stuck on this question since yesterday

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.