exam Maths Puzzle Numerical Ability

Suppose that a certain radioactive substance has a half-life of 20 years. If there are presently 2500 milligrams of the substance, how much, to the nearest milligram, will remain after 50 years?

Read Solution (Total 0)

exam Other Question

This question is not in the book, but one that my teacher gave us to try.
The shipping department for a warehouse has noted that if 60 packages are shipped during a month, the to 10y62+9Y+2 FACTORING POLYNOMIALS HAVING TROUBLE WITH HOMEWORK THANKS