Individuals need to adjust their physical activity to account for reduced flexibility, a loss of balance, as well as decreased energy levels as they age. As we see, there is a number of rather unwanted changes which happen with old age so the correct answer would be D - all of the above.
2x+1.5x+9 would be the equation to use here
All of these choices are correct for drinking sufficient
water will help the body get rid of the stone-forming chemicals such as calcium, oxalate,
urate, cysteine, xanthine, and phosphate. These stone-forming chemicals will
have less chance to settle and bond in your kidneys and urinary tract if you
are drinking enough water because your body will signal the brain for frequent
urination. Thus, eliminating higher concentrations of waste produces, including
substances that can form stones in the future.