The vertices of a rectangle are given in the columns of the matrix [image 1]. if [image 2] is found to perform a transformation, what are the coordinates of the transformed rectangle?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

It says factor each expression 49x-28?