Ines created a coefficient matrix to represent the system of linear equations below

which type of matrix did ines create?
a 3 x 1 matrix
a 3x2 matrix
an augmented matrix
a diagonal matrix

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers