8. In a closed container of constant volume, the ratio of pressure to temperature remains constant. Evelyn trapped some hydrogen in a container of constant volume, and measures its temperature at 300 K and
absolute pressure at 14.7 atm. If she heats the container so the hydrogen reaches 450 K, what would be
the absolute pressure of the gas?

its definatley   this on your answer choice?

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: