Of 48 members of a gymnastics team, 20 entered the parallel bars competition, 7 entered both parallel bars and tumbling competition, and 18
entered only other events. How many members entered only tumbling competition?

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.