DE¯¯¯¯¯¯¯¯ has endpoints D(–1, 0) and E(3, 2). If DE¯¯¯¯¯¯¯¯ is dilated by a scale factor of 2 and the center of dilation is (0, 0), what are the coordinates of D' and E'?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation