Find the present value of a non-interest-bearing seven-month promissory note for S1800 dated August 27, 2012, on December 4, 2012, if money is then worth 8.375%.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year the population of her town is changing by a constant rate

What is the approximate circumference of the circle shown below?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.