John is giving out chocolate to his friends. if he want to give each friend 2/3 of chocolate bar and he has 13 friends, how many chocolate bars will he need to buy.

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?

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.

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the