1. the ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.
true
false
2. how many solutions exist for the system y = 2x + 5 and y = -0.2x - 4?
one solution
infinitely many solutions
no solution
3. how many solutions exist for the system, x + y = 1 and y = -x + 1?
infinitely many solutions
one solution
no solution

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:

step-by-step explanation:

goog be able to you with that maybe