Keith buys a bag of dog food. the bag contains 16 1/2 cups of food. if his dog eats 1 3/8 cups a day, how long will the bag last?

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)