What is the distance between points (−2, 8) and (6, −2)? round to the nearest tenth of a unit.
units?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

How do you write something in scientific notation?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square