A phone that originally sold for $800 loses 3/5 of its value each year after it is released. How much is the phone worth after one year?

Group of answer choices

$710

$640

$400

$320

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.