Estimate the difference by first rounding each number to the
nearest hundred thousand.
4,827,644 - 528,411

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?

Ze trinomial x2 + bx – c has factors of (x + m)(x – n), where m, n, and b are positive. what is ze relationship between the values of m and n? explain how you got ze answer