What is the domain of f(x) = 3x - 27 O {x | x>0}
O {x|x<0}
O {x | x = 0}
O {x | x is a real number}

9514 1404 393

  {x | x is a real number}

Step-by-step explanation:

The domain of any polynomial function is "all real numbers."

step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: