9(-4w^3+4-3v^2) i need the answer ill give you 12 points

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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