Review the scenario and the solution. explain what is wrong with solution and correct the error.

rick studies for 2.25 hours per night. he spends 1/3 of that time studying math. how many minutes does he spend studying math per night?

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?