Answer:
6
Step-by-step explanation:
The distance between Layana's house and store is 4 units.
<u>Explanation:</u>
Given:
Coordinates of Layana's house = 
Coordinates of the store = 
It can also be written as:
Coordinates of Layana's house =
Coordinates of the store =
The distance between the house and the shop is:

On substituting the value we get:

Therefore, the distance between Layana's house and store is 4 units.

Multiply both sides of the equation by 5

Move the expression to the right side and change the sign

Combine Like terms

So I think the final answer would be k=-15-15k
B.) 16 inches, 20 inches, and 24 inches; All of the side lengths of the smaller triangles have been multiplied by 2, which guarantees side-side-side similarity.
Side 1: 8 inches * 2 = 16 inches
Side 2: 10 inches * 2 = 20 inches
Side 3: 12 inches * 2 = 24 inches.
Csc x · sec x - tan x =
= 1 / sin x · 1 / cos x - sin x / cos x =
= 1 / sinx cos x - sin² x / sin x cos x =
= ( 1 - sin² x ) / (sin x cos x) =
= cos² x / ( sin x cos x ) =
= cos x / sin x = cot x