Calculaţi media aritmetică a numerelor: 7,3; 5,6; 0; 21,7; 8; -13; 4,5; 11; 4,9.​

Norma has an a-frame cabin. the back is shown below. how many square feet of paint will she need to cover the back of the cabin? explain how you found the answer.

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Three times the sum of a number and seven is negative thirty-six. what is the number?