May you please find x for me? Best answer gets brainliest

if the longest is actually 45 and seen as 15 then its just x3 meaning 5 times 3 will equal 15 and be the correct answer

Explanation:

15

Explanation:

pitch- the definition of pitch is as follows:

"the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone."