Which set of measurement could be the interior angle measures of a triangle??

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?