7.) after paying $20,000 for a car, you read that this model has decreased in value 15% per
over the last several years.
a. write an equation that could be used to model this situation.
th) = 20,000xt is
b. if this trend continues, how much will the car be worth 5 years from now?

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?