The distance between port M and port N is 162 mi. A ship left port M with a speed of 45 mph. In 45 minutes another ship left port N and went towards the first ship with a speed of 36 mph. How long after the departure of the first ship will the two ships meet?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?

Sheila and her study partner flipped a coin 120 times. they flipped 70 heads and 50 tails. what is the experimental probability that the next flip will be heads up?