What is the domain of the function represented by these ordered pairs ? {(-2,1), (0,0), (3,-1), (-1,7), (5,7)} {-2,-1,0,3,5} {-1,0,1,7} {-2,-1,0,1,3,5,7} {0,1,2,3,5}

{-2,-1,0,3,5}

Step-by-step explanation:

Domain = all the x-values in the set

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: