Can you ever us a calculator to determine if a number is rational or irrational? explain

To factor 4x2-25, you can first rewrite the expression as:

While on a train trip, marsha noticed that there were 35 people in her train car. after the next stop, there were only 21 people in her car. if p represents the percent decrease in the number of people in marsha's train car, what is p?

Evaluate 2x4y for x = 2 and y = 4. 1.-64 2.1/8 3.1/2