The dot plots below show the ages of students belonging to two groups of painting classes: A dot plot shows two divisions labeled Group A and Group B. Based on visual inspection, which group most likely has a lower mean age of painting students? Explain your answer using two or three sentences. Make sure to use facts to support your

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Find the commission on a $590.00 sale if the commission is 15%.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?