Don’t need to send the math or anything just need the answer will give brainliest!!!

What is the solution of sqrt x+2-15=-3

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.