Answer:
Knee pain can have causes that aren't due to underlying disease. Examples include heavy physical activity, lack of use, injuries such as sprains or strains, sitting in a constrained area, or sitting on knees for a prolonged period.
Step-by-step explanation:
possibly Chondro malacia
Damage to the cartilage under the kneecap.
Symptoms may include
Knee pain
Cracking joints
Swelling of the knee
Please go to your doctor...ik it hard with cov id and everything
keeping in mind that a year has 12 months, thus 6 months is really 6/12 of a year.

One expression could be three x to the power of two. Let me know if that's right :)
Answer:
Check attachment.
Step-by-step explanation:
I graphed it.
Answer:
True
Step-by-step explanation: