Answer:
Step-by-step explanation:
P = m/v
Where p is density m is mass and v is volume
Putting values of m and v
P = 52.4/ 13.5
P =3.88
Answer:

Step-by-step explanation:
Algebra
The equation is shown without proper format, we'll assume the correct equation is like

Multiplying all the equation by (x-2)(x+2)

Operating

Rearranging and simplifying

(hint) its a pattern. (thats all I'll say-)