An element with mass 670 grams decays by 21.8% per minute. How much of the element is remaining after 15 minutes, to the nearest 10th of a gram?

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species