Keith and sarah robinson purchased 40 stamps, a mixture of 49 cent and 34 cent stamps. find the number of each type of stamp if they spent $17.35.

The variable in a relation who’s value depends on the value of the independent variable is called what?

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.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.