Help me and i’ll give u a cookie (zoom in to see it clearer)

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

If a is a nonzero real number then the reciprocal of a is

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document