-8/5 is a rational number because in order to be a rational number it must be able to be written as a fraction. -8/5 is a fraction; therefore, the negative does not affect it.
Answer:
A cylinder with a circumference of about 60 units.
Answer: 15
Step-by-step explanation:
$20/128 = 6.75/x
using cross products
20x=128*6.75
divide by 20
x =43.20