13 One function of a movie projector is to enlarge the image on the film. This procedure is an example of a
1 line of symmetry
2 line reflection
3 translation
4 dilation

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!