PLS PLS HELP I NEED THE ANSWER LIKE RN

What is the smallest integer n such that n\sqrt{2} is greater than 20

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr