Please help fast, thanks! How do you determine if a ratio rate or percent is best to use in any given situation?

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Percent increase and decrease. original number: 45 new number: 18