Find the coefficient of variation from the following data mean=4 variance=25​

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18