Answer:
5:3
Step-by-step explanation:
The number of boys were given as 5 out of 8 all you have to do is to subtract 5 from 8.
5+3=8 (total number of children)
8-5=3
There would be 18 books per box.
126/7 = 18
Hope this helps!
Answer:
0.0000000692
Step-by-step explanation:
The number 
is written in scientific notation. To convert to standard notation adjust the decimal point to adjust the number according to the exponent. Since the exponent is -8 then the decimal point moves to the left 8 place values.
