Teresa's restaurant bill is 29.99 dollars before the tax.The sales tax is said to be 6.25% of the total amount .=> 6.25% = 0.0625=> 29.99 dollars * 0.0625 = 1.87 dollars is the sales tax that will be added to his payment,=> 29.99 + 1.87 = 31.86 dollars is now here current payment.Next, he needs to give 20% tip to the water.=> 31.86 * .20 = 6.37 dollars is the total amount for the tip to the waiter. => 31.86 + 6.37 = 38.23 dollars will be the total amount that Teresa needs to pay for her restaurant meal.<span> </span>
probability on first draw is 7/20...and since the marble was not replaced, the probability on the second draw is 6/19. And since they cant happen at the same time, we multiply
