Easy question! just solve with given calculator!

so i'm supposed to use a calculator such as meta calculator to solve these but i'm not exactly sure how to do this so if anyone could solve these two problems for me that would be great!

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.

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?