L’air est constitué principalement d’azote et d’oxygène. Dans un volume d’air donné, le volume d’azote correspond à 78,6% du volume total et celui d’oxygène a 20,9%. Sachant qu’une salle de classe a un volume de 125m3, calculer le volume, en m3, de chacun des gaz présents dans cette salle.

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

There are three grizzly bears in the city zoo. yogi weighs 400.5 pounds, winnie weighs 560.35 pounds, and nyla weighs 628.29 pounds. what is the average weight of the three bears? (hint: what do they weigh all together? ) a. 502.97 pounds c. 604.38 pounds b. 529.71 pounds d. 794.57 pounds