A number cube is rolled 100 times. A 6 is rolled 40 times. What is the relative frequency for rolling a 6?

The frequency would be 60%.

You know how many times she rolled the dice (100) then it also tells you the dice rolled 6 40 times. So then we minus 100 by 4. Which will end up getting us 60. Which we can also write as 60%. So the frequency is 60%.