Samantha writes technical content for a web page and uploads it to the web page. what should she do to ensure that the content, which includes special characters, is readable? a. raplace special characters in the text with their respective codes. b. replace special characters in the text with numbers. c. raplace the special characters in the text with symbols. d. raplace the special characters in the text with markup languages.

Identify at least three types of characteristics that you were asked about as you the computer identify a fruit.

1. declare a constant named cents_per_pound and initialize with 25. 2. get the shipping weight from user input storing the weight into shipweightpounds. 3. using flat_fee_cents and cents_per_pound constants, assign shipcostcents with the cost of shipping a package weighing shipweightpounds.

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?