Help pls If I > 0 and y > 0, which expression is equivalent to V 768x^19y^37 ?

A. 16x^4y^6V3x^4y

B. 8x^9y^18V12xy

C. 16x^9y^18V3xy

D. 8x^4y6V12x^4y

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Two lines parallel to the same plane are parallel to eachother