The first 4 numbers of an arithmetic sequence are given below 16, 12, 8,4,...
What is the value of the 150th term of the sequence?

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

What is the square root of 45? (step by step working plz)

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?