One interior angle of a convex polygon (a convex polygon is a polygon where all angles are less than 180 degrees) is 120 degrees. All the other angles are 130 degrees. How many sides
does the polygon have?​

Which inequality has a dashed boundary line when graphed ?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq