Move words to the blanks and equations to the boxes to prove that vertical angles 1 and 3 are congruent. Because linear palrs of angles are
and
Because angles that are
to the same angle are
,It can be concluded that 1
3
congruent
supplementary
mel +m2 180
mzl+ mz3 = 180
m2+ m3 =180°

Step-by-step explanation:

H

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:

the function makes a strait line horizontally with no x intercept but a y intercept at 9.