In many supermarkets customers can pay for their shopping using credit cards. (a) Name two items of information stored on the magnetic stripe on these cards. (b) State two ways that the supermarket computer would check the credit card.

Answers

Answer 1

Answer:

Explanation:

Two items on the magnetic strip are, Credit Card info and Balance

Two ways supermarket may check are the PIN pad you are using to pay or their reciept system.


Related Questions

Two friends can share 100 songs from their Bluetooth enabled mobile devices
a. True
b. False
c. They need internet connection
d. Not sure

Answers

Answer:

A

Explanation:

If they are connected via bluetooth, you can share unlimited amounts of anything.

You learned that you can use the tags to insert a link to another webpage. One problem that webpage developers face is that, after a time, links may no longer work. Can you think of ways that you can avoid broken links?

Answers

Answer:Image Control

We can use the height and width properties to control the size of our image. Let’s say we only want the recipe image to take up approximately one-third of the page. Do you remember from math class what percentage one-third is? Type in the following CSS rule, and watch your picture change size before your very eyes!

img {

   height:33%;

   width:33%;

}

That wasn’t too difficult, right? Let’s make the image stand out a bit more by adding a border. Inside the img rule, add the following declarations:

border-style:dashed;

border-width: 5px;

Your picture should now have a dashed border around it that is five pixels in width. Play around with the different border styles that are available. You should see a drop-down box of choices, including dotted, dashed, double, groove, inset, and outset. You can also adjust the width of your border. Using your informative guessing skills, can you predict what property you might use to change the color of the border? Try it and see if you’re right!

Explanation:

 this is a direct quote from my lesson

Use the drop-down menu to complete the steps for using the Goal Seek feature.
1. Go to the
tab.
2. In the
from the drop-down What-If Analysis menu.
3. Specify the cell that contains the formula to solve and enter the desired result.
4. Specify the
that contains the value to adjust.
5. Click OK
group, select

Answers

Answer:

1. Go to the  data tab.

2. In the  forecast ribbon from the drop-down What-If Analysis menu.

3. Specify the cell that contains the formula to solve and enter the desired result.

4. Specify the  changing cell that contains the value to adjust.

5. Click OK

Answer: see below

Explanation:

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