Can someone me with questions 22-24? and you

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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