Karl visited his doctor because he found he had difficulty sitting upright and controlling his hands and movements. which neurological disorder
do you think karl may have?
a amyotrophic lateral sclerosis
b. multiple sclerosis
c. alzheimer disease
d. parkinson disease

D. Parkinson disease

Step-by-step explanation:

Karl is having difficulty sitting upright and controlling his hands and movements.  Among the given options for diseases corresponding to this symptom:

amyotrophic lateral sclerosis : causes weakness of muscles and loss of control of muscles.

multiple sclerosis : causes breakdown of signal transmission between brain and rest of the body.

Alzheimer disease : causes loss of memory and cognition

Parkinsons disease : causes difficulty in balancing the body and limb movement.

So among the given options Parkinsons disease is the most relevant neurological disorder corresponding the symptoms exhibited by Karl.

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200