I forgot the steps on how to solve questions like this. May someone please explain how the answer is 15 %? I’m lost… “A Lyft driver chared a passanger $23. If the passenger tipped the driver
$3.45, what percentage tip did the driver receive?”

Thanks a lot!

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

What is always true about a positive integer raised to a negative odd power?

What expression is equivalent to (84+16)