1. Answer the questions below regarding the heating of a house in the Midwestern United States. Assume the following: The house has 2,000 square feet of living space

80,000 BTUs of heat per square foot are required to heat the house for the winter

natural gas is available at a cost of $5.00 per thousand cubic feet

One cubic foot of natural gas supplies 1,000 BTUs of heat energy

The furnace in the house is 80 percent efficient

(a) Calculate the following, showing all the steps of your calculations, including units

(i) The number of cubic feet of natural gas required to heat the house for one winter

(ii) The cost of heating the house for one winter

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:

answer: i think it is (1,-2)

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest