The answer is C something like a step - by - step explanation
Answer:
Speed = 80 m/s
Step-by-step explanation:
The formula to find the speed of a wave is found by
Speed = Wavelength x Frequency where the frequency is in HZ and the wavelength is in meters
Speed = 200 * .40
Speed = 80 m/s
<span>B) 0.25x + 3 ≤ 10; 28
because you can still play your 28th game if you only have $10.</span>