2. the store had a sale of $15 per book. how many books could you buy with $90

6 books

Step-by-step explanation:

15+ 15= 30

30+15=45

45+15=60

60+15=75

75+15=90

We see 15 6 times. 15 x 6= 90

                                90/6= 15

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo

it is rigid.; it is isometric. ; the size is preserved.

step-by-step explanation:

a translation is called an isometry; these are transformations that preserve congruence between pre-images and images.

they are also called rigid transformations, as the only thing that can happen to a pre-image is that it is moved or turned, not stretched or shrunk.

since congruence is preserved, the size is preserved.