A person jogs 45 m east and then 15m west. It takes 15 seconds to complete the jog. Calculate the speed of the person . Choose the correct answer with the correct unit.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Simplify using positive exponents only.

Ellie spent $88.79 at the computer stote. she had $44.50 left to buy a cool hat. how much money did she originally have? write and solve an equation to answer the question.