Tiffany collects perfume bottles. she has 99 bottles in her collection. two thirds of her collection bottles are made of crystal. how many of the bottles in tiffany's are made of crystal?

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)