The 95% range for a specific cat breed's weight is 10 lbs and 20 lbs.
Determine the standard deviation AND the mean weight.

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

W-16=-12 solve each one step equation plz