2. which of the following proves that 209 is not a prime number? a) 209 × 1 = 209 b) 19 × 11 = 209 c) 209 is an odd number d) 209 is not visible by 2,3,5 and 7.

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)

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?