Find the value of cd if c=3/4 and d=3 2/4 simplify if needed?

Nine more than four times a number is the same as one less than twice the number. find the number?

Brad earns $12.75/hr and works 40 hours a week. what is his gross annual income?

This assignment is past the original due date o this data is from a sample. calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 show the following answers to 2 decimal places. sample mean- sample standard deviation ( use the standard deviation above for your calculation.) sample variance ooops- now you discover that the data was actually from a population! so now you must give the population standard deviation.