You need to make an easy-to-use interface to communicate with the user.
Here is the calculator sample:
Please choose one of the options below.
1. Calculate the perimeter of a rectangle
2. Calculate the area of a rectangle
3. Calculate the volume of a cube
4. Calculate the circumference of a circle
5. Calculate the area of a circle
So the user will choose 1, or 2, or 3 or… and then the
the program will prompt the user the enter the measurement
each question at a time.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.

false , a, a, c b, ab

answer #2

darcy was working on a presentation on playing chess. because she chose the checkerboard animation for her slide title, she had to use the same animation for her bullet points.

this statement is   false

answer #4

4. when diego was done adding special effects to his presentation, he wanted to see how it would look to his audience. how did he do this?

b. he clicked on the slide show button.

we can see special effects that are added by clicking on slide show button

answer #5

d. she should use the same slide transition for each slide.

using same transition on every slide should be a better option.

answer #6

b. she matched transitions to her content.

c. she used consistent animations and transitions.

matching transitions to the content is a good practice.

and we should use static animations

answer#8

b. sound can distract the audience when it is overused.

e. sound cannot be used in presentation programs.