Answer:
The system of equations is
Step-by-step explanation:
Let
x ----> the number of minutes of calling time
y ----> the monthly cost of the calling plan
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-intercept
In this problem
Plan A
substitute
----> equation A
Plan B
substitute
----> equation B
therefore
The system of equations is
Answer:3
Step-by-step explanation:
Simply plug in -1 for anywhere you see x in the equation so...
8(-1)^2-5
8(1)-5
8-5
3
Hope this helps
The opposite angles of a parallelogram are equal. Therefore, for parallelogram KLMN, <K = <M
Answer:
$817.50
Step-by-step explanation:
Hello Matt7151!
To find the total amount, we will first need to find how much tax.
We can express 9% as the fraction 
.
× 750 = 67.50
So she's paying $67.50 sales tax.
750.00
67.50
-------------------
817.50
So Debra's really paying $817.50.
Thus, the answer is 
.
Answer: 6.3
Step-by-step explanation:
1.8 + 45 tenths equal 6.3
