What is the variable 4t+8-5c

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

One integer is 8 times another. if the product is 72, then find the integers

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?