Elisa bought a car for $12,000 ten years ago. It has depreciated at a rate of 9% per year since she bought it. Write an expression to show the value of the car now. Then find out how much the car is worth now.

Can someone answer these problems for me

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?

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?