If donald answered 15 questions correct out of 20 what is the fraction of the questions donald answer correctly

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

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

What is the distance between the points (2, 5) and (5,9)?