What is the best solution to the system of equation? 2x-y=7 y=2x+3

Which statement about perfect cubes is true

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.