Let x = the amount that Katie spent
Katie: x dollars
Stephanie: x-3 dollars
Brandy: 2x dollars
Together they spent $56, so the sum of these numbers should equal $56
x + (x-3) + 2x = 56
x + x + 2x - 3 = 56
4x = 59
x= 14.75
Katie spent $14.75
Answer:4.00000
Step-by-step explanation:
Slope = 2
x-intercept = -4/2 = -2
y-intercept = 4/1 = 4.00000
When finding x, you need to balance the equation.
To balance the equation, you need to do the inverse to the other side to get x all by itself.
x+69(-69)= 79(-69)
x= 10
I hope this helps!
~kaikers
Let's put this number into the formula. The circumference of a circle that has a diameter of 8 inches is 25.12 inches.
To find the outcome of compounded money, we use the following formula:

In this formula:
e represents the outcome
b represents the money at the beginning
i represents the interest rate
n represents the number of years.
Filling in this formula, we get:



Therefore the answer is C. $535.29