The time to complete the NYC marathon are normally distributed with a mean of 278 minutes and a standard deviation of 62 minutes. If 125 runners are randomly selected then how many do we expect will take less than 3 hours to complete the race. Give your answer to two decimal places and do not give units.

An annual membership to a dog park normally costs $125. Julieta purchases a membership during a holiday sale for 15% off the regular price. What is the sale price of the annual membership to the nearest cent?

Each face of a cube has an area of 75xy^2 cm^2. what is the volume of the cube​?

Carmichael Cleaners needs a new steam finishing machine that costs $100,000. The company is evaluating whether it should lease or purchase the machine. The equipment falls into the MACRS 3-year class, and it would be used for 3 years and then sold, because the firm plans to move to a new facility at that time. The estimated value of the equipment

I need help! So it says that, On Tuesday the value stock decreased by 1/2 point. On Wednesday the value increases by 3/4 point. On Thursday the value decreased by 3/8 point. What integer represents the change in stock value after three days.