What is the explicit rule for this geometric sequence? a1=23; an=9⋅an−1 an=9⋅(23)n an=23⋅9n an=9⋅(23)n−1 an=23⋅9n−1

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?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?