Answer:
8.65%
Step-by-step explanation:
We have been given that Debra earns $4740 per month. Every month she saves $410. Additionally, she has $2520 in outstanding credit cards and makes a $210 monthly payment of these cards.

Upon substituting our given values in above formula, we will get:




Therefore, Debra's approximate savings ratio is 8.65%.
Answer:
Option c) 
Step-by-step explanation:
Let
d -----> the distance in miles
c ----> the cost in dollars
we have the ordered pairs
(3,7.30) and (8,15.30)
step 1
Find the slope of the linear equation
The slope is equal to


step 2
Find the equation of the line in point slope form

we have


substitute



7 is the most common in this expression.
therefore to factorise, you will choose the most common factor.
the answer will be -7(r+5x)
Isolate the radical, then raise each side of the equation to the power of its index.
Exact Form:
x
=
3
+
√
5
2
,
3
−
√
5
2
x
=
3
+
5
2
,
3
-
5
2
Decimal Form:
x
=
2.61803398
…
,
0.38196601
…
Answer:
The solution to the system is (-2,6)
Step-by-step explanation:
I said the solution to the system is (-2,6) because that is where both lines cross, meaning that's the solution.
Hope this is hepful.