За+ 2а=25
I need help

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

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?