When do I use - b/2a?

At the Lira Store for Girls, socks are on sale this week for $1.29 a pair. The regular selling price is $1.79 a pair. What is the markdown rate?

Which is the correct way to write 507,021 in expanded form

Two Bonds funds pay interest at rates that differ by 1%. Money invested for one year and the first fund earns $280 interest. The same amount invested in the other funds earns $315. Find the lower rate of interest

A circular pan has a diameter of 8 inches. What is the exact area of the pan? A. 16π square inches B. 64π square inches C. 256π square inches D. 8π square inches

Jerome tries to find the value of the expression 3-6+5 but first applying Community property. He writes expression as 3-5+6. Explain what's wrong with Jerome's approach

What are the next two palindromes greater than 50805

Y = f (x) = 9x Find f (x) when x = 1/2

What is 3 3/5 * (-8 1/3)

Taylor made 5 1⁄4 cups of iced tea. How many 10 ounce glasses can he fill to the brim with iced tea?

A country's population in 1993 was 83 million. in 2001 it was a 87 million. estimate the population in 2004 using the exponential growth formula. round to the nearest million