Let's assume two variables x and y which represent the local and international calls respectively.
x + y = 852 = total number of minutes which were consumed by the company (equation 1)
0.06*x+ 0.15 y =69.84 = total price which was charged for the phone calls (Equation 2)
from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84
51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1)
208+x=852 (By subtracting both sides by 208)
x = 852-208 = 644 minutes = local minutes
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now, let's expand the squared term to get the standard form of the quadratic.

Answer:
3/4
Step-by-step explanation:
it's in slope intercept form so the slope is the number before x
Answer: 
Step-by-step explanation:
Given: Original length =
inches
inches ( In improper fraction )
Length of piece cut from original =
inches

inches ( In improper fraction )
Length of piece leftover piece = (Original length ) - (Length of piece cut )

Hence, the leftover piece will be
long.
Answer:
y = -
x + 3
Step-by-step explanation:
Assuming you require the equation of the line
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = -
, thus
y = -
x + c ← is the partial equation
To find c substitute (- 4, 6) into the partial equation
6 = 3 + c ⇒ c = 6 - 3 = 3
y = -
x + 3 ← equation of line