If I did the math correctly I’d should be -5 or rewritten as -5/1.
Answer:
You are expected to lose $0.05 (or win -$0.05)
Step-by-step explanation:
Since the roulette wheel has the numbers 1 through 36, 0, and 00, there are 38 possible outcomes.
In this bet, you are allowed to pick 3 out of the 38 numbers. Thus, your chances of winning (P(W)) and losing (P(L)) are:

The expected value of the bet is given by the sum of the product of each outcome pay by its probability. Winning the bet means winning $11 while losing the bet means losing $1. The expected value is:

Therefore, with a $1 bet, you are expected to lose roughly $0.05
Answer:
13
Step-by-step explanation:
a = 5
b = -8
5 - -8 = 13
The variable and numbers in yellow
Answer:
$4.56
Step-by-step explanation:
The tax is found by multiplying the tax rate by the amount of the sale.
... 6.25% × $72.99 = $4.56
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Some calculators deal directly with percentages, so you don't even have to think about it. Your friendly, local Google search box is an excellent calculator for many purposes.