Determine which of the following are functions. Select all that apply.

A 2-column table with 5 rows. Column 1 is labeled x with entries negative 6, negative 2, 2, 6, 10. Column 2 is labeled y with entries 17, 13, 9, 5, 1.
{(-4, 2), (-2, 1), (-1, 3)
(-1, 4), (0, 5), (2, 5)}
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 3, 0, 0, 3, 4. Column 2 is labeled y with entries 4, 2, 4, 8, 7.
y = -4x² + 45x + 9

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap