Is this a good definition

a cat is an animal with whiskers.

This definition is not enough to describe a cat.

Step-by-step explanation:

No, this is not enough definition to describe cats. Also whiskers are not exclusive to cats only. There are many other animals with whiskers.

This sentence is just a part for the introduction of a cat.

Rather we can say many things as - a cat is a carnivorous animal and also kept as a pet. It has whiskers and feast on mice etc.

no

step-by-step explanation:

step one- cross multiply

3*15=4*6

step two- multiply

3*15=45 4*6=24

step three- simplify

45=24

45 and 24 aren't equal, therefore 3/4 and 6/15 are not proportional

good luck :)

i hope this helps

have a nice day !!