hello everyone I'm stuck on these last 2 questions please help me<3 ill do anything to have these 2 done asap just let me know!!

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?

Urgent need asap △abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.