Which of the following numbers is rational? A. 2.5
B. 25
C. 27
D. 257
Help my Dumba** should’ve went to class

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.

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?