Amada buys 4 cans of paint and 3 brushes for a total of $104. The price of one paint can is $4 more than double the price of one brush. Write the system of equations that describe this situation and solve it by substitution to find the price of each can and each brush. Show your work

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 − 24x 8,000 + 2x 8,000 − 2x

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).

What is the rate of change of a line that passes through (2,-5) and (6,-2)?