Solve for x.

x = ___

27
33
30​

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?