1 + 1. Help me please

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)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Give me the equations of two lines that have the same slope but are not parallel.