A cab driver charges a flat fee of $2.50, plus a rate of $0.40 for each quarter mile of a trip Which equation represents the cost of a cab ride that is x miles long ?

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Find dy/dx using implicit differentiation ln(20+e^xy)=y

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%