What’s the missing number in this sequence:
9, 9,
11, __
21, 29,
29, 39

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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

How do i multiply two digit numbers