Answer:
$85.60
Step-by-step explanation:
We add the percentage of sales tax to the total. This means we are paying 100% + 7% tax, or 107%.
107% = 107/100 = 1.07; this gives us
80(1.07) = 85.60.
Answer:
y - 8 = -2(x + 3)
General Formulas and Concepts:
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate
y₁ - y coordinate
m - slope
Step-by-step explanation:
<u>Step 1: Define</u>
Slope <em>m</em> = -2
Point (-3, 8)
<u>Step 2: Write equation</u>
y - 8 = -2(x + 3)
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Answer:

Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to

where
m is the slope
b is the y-intercept
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to

take the points
(0,2.5) and (100,97.5)
substitute in the formula



Find the y-intercept b
we have


substitute i the linear equation 

solve for b

Note It was not necessary to calculate the value of b because the value is given in the table
Remember that the y-intercept is the value of y when the value of x is equal to zero (the y-intercept is the point (0,2.5))
The linear equation is

Answer:
D
Step-by-step explanation: