I’m pretty sure it’s D but I may be wrong
The answer is false my friend.... false
At the given point,

Then the level curve is

which is a circle centered at the origin with radius 5 - quite easy to sketch.
Answer:
Rhombus
Step-by-step explanation:
Mark as Brainllest
Answer: Kristina sister's age = 15 years
Step-by-step explanation:
LET the sister's age be rep as x
SO that Kristina = 4/5 of x
Given that Kristina's age = 12 , Then her sister's age can be found using The equation
4/5 x X= 12
4/5 X =12
X = 5 X 12 / 4
=60/4=15
Kristina's sister's age = 15 years.