Apassenger train has tickets available for 12 window seats and 8 aisle seats. the next person to buy a ticket will be randomly assigned to one of those seats. what is the probability that the next person will be assigned to an aisle seat? also tell me how to show work. a) 1/8 b) 2/5 c) 1/2 d) 2/3

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit