In the figure, if the measure of 21 = 112°, what's the measure of 212?

For this question, we can assume that the lines are parallel.

Step-by-step explanation:

This means that angle 1 is congruent to angle 11.

Afterwards, we know that angle 11 + angle 12 equal a straight line, or 180º.

If angle 11 is congruent to angle 1, that means measure angle 11 = 112º.

Then, we subtract 112 from 180 which would give us 68.

Therefore, the answer is 68º.

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: