The set of steps needed to solve a problem.

(a)  

A loop in which you know beforehand how many times it will be repeated.

(a)  

The order of commands in the algorithm.

(a)  

It means a program is used a second time.

(a)  

It means making some changes to a program so it does a new thing.

(a)  

Worked out by calculating the total of a series of values and dividing by the number of values in the series:

total / number of values

(a)