Answer:
23!
Step-by-step explanation:
529/23= 23
23 chairs and 23 rows
<em>*Remember that A = angle and S = side.</em>
So remember that <u>similar figures have congruent angles and proportional sides.</u> Looking at triangles ABC and DEF, they both share 85° and 30° angles. <u>With this, the two triangles are similar by AA, or the first option.</u>
0.00000342 is the answer.
I think the answer is y=-2(x-2)^2+6
Answer is in the pic above. Theorems used:
Exterior angle theorem
Inscribed angle theorem.
