Which could be the first step in solving the equation represented by the model below?
Add 4 positive unit tiles to each side.
Remove 4 unit tiles from each side.
0 Add 6 positive unit tiles to each side.
0 Remove 6 unit tiles from each side.

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a.r'(–3, 1),  s'(–3, 5)b.r'(–1, 3),  s'(–5, 3)c.r'(1, 3),  s'(5, 3)d.r'(5, 3),  s'(1, 3)

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Factor the polynomial expression x6 – x3 – 20