I think the answer would be B
Answer:
21600 letters
Step-by-step explanation:
There are 5400 seconds in 1.5 hr, so there are 135 40-second intervals. So, 160 messages multiplied by 135 time intervals is 21600 letters.
Answer:
500ml/hr
Step-by-step explanation:
There are 1000 milliliters in a liter, spread out over 2 hours or divided by two is 500 ml/hr.
Domain is all the values that x can take in the function f(x).
Here, y = x^2
or y = f(x) = x^2
here, x can take any real value. So all real numbers are the domain of f(x).
Domain of y = R
R mean real numbers.