Answer:
C. 8.1 Inches
Step-by-step explanation:
Take 100 Ib. and multiply it by 0.9. You get 90 lb. Now referring to the fraction rule, do the same to the "denominator": 9 In. x 0.9, and you get 8.1 Inches.
2
√(-8-8)^2 +(10+4)^2=
✓-32+28
✓4
=2
square root of 81
so 9 is rational number.
the rest are irrational number
BIL is the answer to that one day