Code example 7-1private void btnCalculate_Click(object sender, System.EventArgs e){    decimal weightInPounds = 0m;    try    {        weightInPounds = Convert.ToDecimal(txtPounds.Text);        if (weightInPounds > 0)        {            decimal weightInKilos = weightInPounds / 2.2m;            lblKilos.Text = weightInKilos.ToString(“f2”);        }        else        {            MessageBox.Show(“Weight must be greater than 0.”, “Entry error”);           txtPounds.Focus();        }    }    catch(FormatException)    {        MessageBox.Show(“Weight must be numeric.”, “Entry error”);        txtPounds.Focus();    }} (Refer to code example 7-1.) What type of data validation does this program do?

What statement is used to implement the selection structure?

What statement is used to implement the case structure?

3. A nurse is contributing to the plan of care for a 2-month-old infant who has respiratory syncytial virus (RSV).  Which of the following interventions should the nurse recommend including in the plan of care? 

Code Example 4-1decimal a = 2.5m;decimal b = 4.0m;decimal c = 12.7m;int i = 4;int j = 8;int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statement is executed?decimal x = (decimal)i / (decimal)j;

Given the following Random object named number, which of the following choices gets a random integer from 1 to 10 (including both 1 and 10)?Random number = new Random();

A data tip

Which of the following is not an advantage of passing arguments by name?

When can you not code a method using an expression body?

What is the value of the cityState string after these statements are executed?cityState = “Milwaukee”;cityState += “,” + “Wisconsin”;