A different airplane travels at a constant speed of 600 miles per hour. Write an equation that models the number of miles flown, y, by this airplane given x hours. Identify the dependent variable and describe why it is the dependent variable. How many miles will this airplane travel in 2.5 hours?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

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?