B. 7/-8
because the whole entire fraction is still a negative.
Let x is the original bill
x + 0.08x = 167.4
1.8x = 167.4
x = 167.4 / 1.8
x = 155
answer: $155 was their <span>bill before the tax was added to it</span>
Answer:
The two straight line intersect at (2,-1)
Step-by-step explanation:
We are given the following equations in the question:

Comparing to the general form of equation,

where m is the slope and c is the y-intercept, we get,
Equation 1:

Equation 2:

Plotting the two equations, we get:
The two straight line intersect at (2,-1)
The circumference of a circle is found by using the equation: C= 2 x PI x r
Both circles have r = 1
Circumference = 2x 3.14 x 1 = 6.28.
Diameter is 2 times the radius= 2x1= 2
The ratio of the circumference to the diameter = 6.28 / 2 = 3.14 which is the value of PI
The slope is
1. Find ordered pairs ( 1 , -4 ) ( 3, 3)
The formula is
M= y2 - y1
_____
X2- X1
2. Replace the numbers
M = 3 - 4.
———
1-3
Subtract
3. You get -1/-2
4. Divide you get 0.5
( but if you need rise and run use -1/-2) rise top run bottom
Slope is 0.5 I think
Hope this helps here a picture of my lesson.