Question: Endangered species the tables on the next page give the numbers of some species of threatened and endangered wildlife in the United States and in foreign countries in 2007.
![1437_US.png](https://secure.tutorsglobe.com/CMSImages/1437_US.png)
(a) Write a matrix A that contains the number of each of these species in the United States in 2007 and a matrix B that contains the number of each of these species outside the United States in 2007.
(b) Find a matrix with the total number of these species. Assume that U.S. and foreign species are different.
(c) Find the matrix B - A. What do the negative entries in matrix B - A mean?