What is 2.828427125 rounded to the nearest 10th

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf