The answer you are looking for is $70
hope that helps!!!
Answer:

Step-by-step explanation:
Given


Required
Determine 
In functions;

So, we have:


Substitute values for R(x) and C(x)

Open bracket

Collect Like Terms


As a percentage it would be 63.5% and as a fraction it would be 635/ 1000 or 127/200
Answer:
y = 2.5x + 33.4, y = 75.9 miles
Step-by-step explanation:
Equation is y = 2.5x + 33.4
17 = 2.5 x + 33.4
y = 2.5 (17) + 33.4
y = 42.5 + 33.4
y = 75.9 miles
X
=
−
3
,
y
=
4
.
Explanation:
From the second equation, you know that
x
=
5
−
2
y
. Substitute this expression for
x
in the first equation to get
2
(
5
−
2
y
)
+
3
y
=
6
10
−
4
y
+
3
y
=
6
−
y
=
−
4
y
=
4
Now that we have found
y
, we can find
x
using
x
=
5
−
2
y
→
x
=
5
−
2
⋅
4
=
−
3
HOPE I HELPED :)