Traffic police measure the speed of the incoming vehicles. The speeds are normally distributed with a mean of 70 km/hr and a standard deviation of 10 km/hr. What percentage of vehicles would-be travelling at random has a speed less than 80 Km/hr?

Ayayai Company has an old factory machine that cost $63,000. The machine has accumulated depreciation of $35,280. Ayayai has decided to sell the machine. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)