12 - (-10) and -10 - 12

A. Equal
B. Not equal

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Which of the following are accepted without proof in a logical system? check all that apply.

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?