Step-by-step explanation:
-4x - 28 = -4(x + 7) or 4(-x - 7)
Topic: Algebraic factorization
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Answer:
Noah spent $3.3 for 1 gallon of gasoline.
Lydia spent $3.25 for 1 gallon of gasoline.
Step-by-step explanation:
To find how much each person spent for 1 gallon of gasoline, we divide the amount spent by the number of gallons.
Noah spent $66 for 20 gallons of gasoline.
Amount spent $66, 20 gallons. So
66/20 = $3.3
Noah spent $3.3 for 1 gallon of gasoline.
Lydia spent $81.25 for 25 gallons of gasoline.
Amount spent $81.25, 25 gallons. So
81.25/25 = $3.25
Lydia spent $3.25 for 1 gallon of gasoline.
Answer:
Step-by-step explanation:
A plane that passes through the point 
with a normal vector of 
has the following equation, initially:
After we solve this, we have
In this problem, we have that:
So
Multplying everything by -1
Answer:
$4.48
Step-by-step explanation:
First, you have to convert the percentage into a decimal.
12% x 100 = 0.12
Second, you multiply the decimal with the cost of the product before tax.
$4 x 0.12 = $0.48
This number is the amount of money you will have to pay in tax.
Third, you add the tax amount to the original cost of the product to get the total price.
$4 + $0.48 = $4.48
Answer:
<h3>x1=-8;x2=8</h3>
Step-by-step explanation:
[x]=8
x=8
x=-8
