Please help! I'll mark it as brainliest

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

What is the radical expression that is equivalent to the expression 27 1 over 5?