It would be 20 because if you estimate 53 you would get 50 so 50÷3 would be clase to 2 and then add 1 zero and you will get 20 so 20 is your answer. Hope this helped. ☺
Scientific notation is a way of writing numbers in a form of a decimal multiplied by an exponent of 10.
For these, the exponent will be negative, since they're teeny tiny decimals, and we'll have to move the decimal point back to the right.
0.00000012 will become
This is because the decimal point is moved seven places to the right of where it originally was.
0.000005008 will become

Again, this is because the decimal point is moved seven places to the right of where it originally was.
So, your scientific notations are

and
Answer:

Step-by-step explanation:
using the rule of exponents
⇔ 
f(- 5) =
=
= 
42/number of sides in a hexagon
42/6
7 in
Hope this helps!
Answer:15. 5/8 = 0.625
Step-by-step explanation: