In a survey asking 1200 students what they did on winter vacation, the following results were found: 45% visited family and 270 had family visit them. the remainder of the students didn't see any family members outside of their immediate families. a. how many students visited families? b. your bill at a restaurant comes to $56. you want to leave a 15% tip. how much should you leave?

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