Someone help if you dunno don't answer add an explanation if possible, thanks!

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.

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?