A bus picks up 53 people on each trip how many people does it pick up in 12 trips

Taking algebra two apex courses and need with these questions

An equation where variables are used to represent known values—function notation true or 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.