Density = Mass/Volume
Density = 6/12 = 0.5 g/mL or 0.5 kg/L
thats the answer just look at the picture :)
for the work
A healthy 140 pound boy needs between 2,000 to 2,400 calories a day.
Hope that helps :)
The value of the card was $13 when he originally purchased it.
Answer:
(A)


(B)

(C)

(D)
The high school's enrollment in 2017 is 2500
Step-by-step explanation:
Let's assume time starts since 2009
so, In 2009 , t=0
P=900
In 2012,
t=2012-2009=3
P=1500
(A)
So, we have points as


(B)
we can use slope formula

we can plug values


we know that
slope is rate of change of P with respect to time
so, slope means increase in population is 200 per year
(C)
we can use point slope form of line





(D)
In 2017 ,
t=2017-2009=8
we can plug t=8
and we get


The high school's enrollment in 2017 is 2500