How can you use place value and period names to read and write 324,904 in word form

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

What is the equation of a line passing through (-6,5) and having a slope of 1/3

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)