1/6 x 3/4 Pls ASAP

Brainpower to correct-est and fastest answer.

If you lie, I'll know

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?