Find tan a in the triangle

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

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=

Which expression gives the exact value of x?