The variables must begin with a letter of the alphabet, a dollar sign or a underscore. After the first character you may add numbers as well. All special characters besides the dollar sign and underscore and not allowed in variables.
Answer:
Radio Corporation of America (RCA)
Explanation:
A corporation is not a video connector.
Answer:
Both Flat, round discs.
A DVD can hold six times as much as compacity than a disc.
A CD is a Compact Disc.
Explanation:
In an educational setting, standards-based assessment is assessment that relies on the evaluation of student understanding with respect to agreed-upon standards, also known as "outcomes". The standards set the criteria for the successful demonstration of the understanding of a concept or skill -WIKIPEDIA
