If ribbon costs10 cents per foot what is the total cost of the ribbon in dollars. explain your reason including how u decided where to place the decimal

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?

What is the frequency of the sinusoidal graph?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?