Does 1/2^3 equal to 2^-3

HURRY 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)

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?