What was the principal for a semi-annually compounded account
earning 3.9% for 15 years that now has a
balance of $2,500?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?