Consider an instance of the relation Foo. Below, we ask you to write three create table statements. Each create table statement must define a primary key. Foo (A, B, C, D) A B C D 1 Ann 23 3 2 Bob 23 4 3 Joe 20 3 4 Bob 20 4 (a) Write two different create table statements for which the instance of Foo is legal. Note that taking the first statement and simply reordering columns does not give a different create table statement.

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

Which option correctly describes a dbms application? a. software used to manage databases b. software used to organize files and folders c. software used to develop specialized images d. software used to create effective presentations

How often does colleges update the cost of attendance on their website? . a)every two years b) every four years c) every year d) every semester