A three-character code uses the letters D and Q. Either of the letters may be repeated.



Find the probability of a code with exactly two D’s.

1/1 x 1/2 x 1/2 = 1/4

One times One-Half times One-Half Equals One-Fourth

The Probability is 1/4 or One-Fourth.

Step-by-step explanation:

There is a One-Half possibility on two of them for choosing D.

Multiply that by each other and than by 1.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5