Write the first four terms of a decreasing Arithmetic Sequence. Use this to describe, in your own words, how to write the formula for the sequence. Then use the formula to calculate the 20th term. Show all work.

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

If 20% of a number is 35, what is 50% of that number?

How do you find principle and simple interest