please explain solution

Blocks m1 = 1.09 kg and my = 4.64 kg are connected by a massless string that passes over a 1.84 kg pulley, as shown in the diagram below. The pulley has a radius of 15.1 cm. If my is released from rest in this frictionless system, determine the tension in the right portion of the string. Use 3 sig figs. Enter your numerical answer in the space below without any units. On paper, write out the full solution, including units in your final answer. After you submit this test, you will take a photo of your solutions and submit it. Your mark will be based on the answer you enter below and the solutions you submit