A bag contains blue marbles and red marbles, 55 in total. The number of blue marbles is 1 less than 3 times the number of red marbles. How many blue marbles are there?

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?

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.