The image of (2,-3) after a reflection in the line y=x is ?

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

What is the binomial expansion of (2x-3)^5