Is 3.14 a terminating decimal

Can (3,5 and square root 34) be sides on a right triangle?

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.

2x minus y equals 6, x plus y equals negative 3