If ΔMNP is equilateral, how did Casey draw the arcs that defined points M and N?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|

Hurry can a triangle can be constructed with angles measuring 115°,55°, and 20°? yes or no