Yan is climbing down a ladder. each time he descends four rungs on the ladder he stops to see how much to see how much farther he has to go . which word in the problem indicates that a negative integer should be used?

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

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?