II. Solve the following problems.

1. A lamppost casts a shadow that is 45-foot long. A 3-foot tall mailbox casts a shadow that is foot long. How tall is the lamppost?

2. A man wants to estimate the height of a tower. He places a mirror on the ground 2000 cm away from the tower and moves backward 100cm until he see the top of the tower in the mirror. If the eye of the ma is 250 cm from the ground, what is the height of the tower?​