Answer:
there are 3 red fish
Step-by-step explanation:
1:5
_:15
5 times 3 =15
so 1 times 3 =3
Answer:
16.8 + (-18.6)
Step-by-step explanation:
A subtraction symbol and adding a negative are the same
Answer:
No
Step-by-step explanation:
All whole numbers, positive, negative, and 0 are integers.
Using scientific notation, it is found that:
67 ns =
s
<h3>What is scientific notation?</h3>
A number in scientific notation is given by:

With the base being
.
In this problem, the amount is of 67 ns.
Each ns has
seconds, hence:

We want the base between 1 and 10(exclusive), hence, we move the decimal digit one digit to the left and add one to the exponent, and the representation is:
67 ns =
s
You can learn more about scientific notation at brainly.com/question/16394306