What's 2+2-2-4+77 and what is the square root of the sum

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

During a wright loss challenge your friend goes from 125 pounds to 100 pounds. what was the percent weight loss

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d. c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft