In MatLab:

1. Imagine that world leaders have decided to come up with a single currency for the world. This new currency, called the Eullar, is defined by the following: one Dollar and two Euros and sixteen Yens make twenty-five Eullars, and two Dollar and two Euros and twenty-four Yens make twenty-five Eullars, and three Dollars and four Euros and eight Yens make fifty-four Eullars. Find out the values of a dollar, Euro, and Yen in terms of Eullars. (solve it as a set of simultaneous linear equations) 2.Write a function Sumpositive that will take a matrix as input, and its output is the summation of only the positive elements of the matrix. So, if A = [1 2-3 -45-6] Then Sumpositive(A) should be 8