Simplify the expression.
-(10)^-2
1/10^2
-1/10^2
-1/-2^10
10^2

How many degrees does the hour hand move from 3: 00 to 5: 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.

The ratio of wooden bats to metal bats in the baseball coach’s bag is 2 to 1. if there are 20 wooden bats, how many metal bats are in the bag?