Asuperintendent has 12 schools under his jurisdiction if he randomly selects 3 schools from these 12, how many different combinations are possible

Is the square root of 4 plus the square root of 16 rational?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

What is the sum of these mixed numbers 4 2/3+ 3 1/9