$2,653.60 would be the total cost with tax and the tax is $173.60
C.-3
x=-3
3x-15/2=4x
multiply 2 on both sides
3x-15=8x
subtract 3x from both sides
-15=5x
divide 5 from both sides
-3=x
Answer:
Step-by-step explanation:
The order of a succession is a way that the terms (the first, the second, the third, etc.) can be distinguished according to a certain formation law or order criterion.
Example:
a¹/a²/a³/a⁴ And successively
In the order of a sequence you can assign any letter.
Answer: .42857 liters of pure water
Step-by-step explanation:2.4 = .7w + 2.1
2.4 - 2.1 = .7w
.3 = .7w
w = .3%2F.7
Answer:
The vertex is: 
Step-by-step explanation:
First solve the equation for the variable y
Add 4y on both sides of the equation
Notice that now the equation has the general form of a parabola
In this case
Add 
and subtract on the right side of the equation
Factor the expression that is inside the parentheses
Divide both sides of the equality between 4
For an equation of the form
the vertex is: (h, k)
In this case
the vertex is:
