25. is 3+2n=4n+7
27. is 2(3+2x)=3(x-4)
29. is 8x-(3x+2)=3x-10
34. is 1-1/2x=6
43.is 1/2 +2/x=3/4
51. is x/x-1 +3=2/x-2
57. is 5/2x-3 +3/x +5
59. is 6t+7/4t-1=3t+8/2t-4
show your work

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?