Stanley's unit rate is 30 miles per gallon ( represented by:

)
Carla's unit rate is 36 miles per gallon ( represented by:

)
Carla's unit rate is higher than Stanley's. (mention the slope being steeper on the graph, because I have the same vacation homework.)
Answer:
C= 25
B and D= 65
Step-by-step explanation:
The whole thing equals 180, and if one side (A) is 25 then the other side (C) is 25 too. 180-50= 130. 130/2 is 65 and that's B and D.
F(x)= 12 / (4x+2 )
f(-1) mean to replace x by (-1)
so, f(-1) = 12 /(-4+2)
f(-1)= 12/-2
f(-1) = -6
Let
x-------------> t<span>he width of each postcard
y-------------> the </span>the length of each postcard
we know that
A=12 in²
A=x*y-------> 12=x*y-------> equation 1
y=x+4-----> equation 2
<span>I substitute 2 in 1
</span>12=x*y----------> 12=x*[x+4]------> 12=x²+4x------> x²+4x-12=0
x²+4x-12=0
using a graph tool----> to resolve the second order equation
see the attached figure
the solution is
x=-6----> is not solution
x=2 in
y=x+4----> y=2+4-----> y=6 in
the answer isthe length of each postcard is 6 inthe width of each postcard is 2 in