Answer:
Part A = $180
Part B = $104
Step-by-step explanation:
Part A:
You do 255÷5=51
51 x 4 = 180
Part B:
You do 130÷5=26
26 x 4 = 104
468=40x+18(x-3)
468=40x+18x-54
468=58x-54
522=58x
9=x
I'm not sure if you need to know x at all, if not, the top equation is all you need.
It is a 50 percent chance. This is because there is only two possibilities that can occur. It does not matter how many times the coin has been flipped.
Http://www.icoachmath.com/math_dictionary/equivalent_equations.html
Here's a website that might help