Prove this plz I really need it

See below.

Step-by-step explanation:

1) Statement: BM is a median of TK and BM is an altitude of ΔKBT

Reason: Given

2) M is the midpoint of TK

Reason: Definition of median

3) TM ≅ MK

Reason: Definition of midpoint

4) BM⊥TK

Reason: Definition of altitude

5) ∠BMT and ∠BMK are right angles

Reason: Definition of ⊥

6) ∠BMT ≅ ∠BMK

Reason: Right angles are ≅

7) BM ≅ BM

Reason: Reflective property of ≅

8) ΔBMT ≅ ΔBMK

Reason: SAS Congruent Triangles

9) BT ≅ BK

Reason: CPCTC (Corresponding Parts of Congruent Triangles are Congruent)

Hope that helped! :) Proofs are a killer.

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3

what i would say the best answer is a. 40.5