Question: solve the system by the addition method. 3x + 6y = 3

Which is the completely factored from of xy^3-x^3y

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.

Me with this one question, and i'll upvote the brainliest answer