Provide us with this "sum" function, and we can tell you. We aren't psychic.
Answer: D) Operating Systems manage the computer's random access memory (RAM)
Explanation:
It's not A because all modern computers use some form of an Operating System.
It's not B because some Operating Systems can cost hundreds of dollars.
While C has some truth to it, it's reversed. Operating Systems are there to manage and allocate system resources, and D is the better choice.
Answer:
public class TextMessage
{
private String message;
private String sender;
private String receiver;
public TextMessage(String from, String to, String theMessage)
{
sender = from;
receiver = to;
message = theMessage;
}
public String toString()
{
return sender + " texted " + receiver + ": " + message;
}
}
Answer:
Use font colors that work well with your background.
Select font sizes that are appropriate for your delivery method.
Fonts should be appropriate for your audience.
Limit the number of fonts you use to three or four.
Hope this helps!