A circle has a radius of 2 meters. find the exact circumference of this circle in terms of pi

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 tt of tokens james has is a function of gg, the number of games he plays

The square root of 9x plus 7 plus the square rot of 2x equall to 7

What percent of 18 is 24? and plz explain thx.