Erin had 55 stuffed bears. She took out her favorite 7 bears and then equally divided the other bears among her 3 sister. Erin’s youngest sister, su, already had 15 stuffed bears. How many stuffed bears does su have now?

Su has 17 bears

Step-by-step explanation:

Su has 15, Erin takes out 7 of her collection and splits evenly. each sister should get 2 each. Su has 17.

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

ou would have 12 of each