Does anyone know where I can get the answers for this? ​

#12 find the value of x. #13 find the value of the variable.

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.