The length of a skating rink is three times it's width. its width is 10 m. what is its area

What is the factored form of the following expressions? d^2 – 13d + 36

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

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=