IDNLearn.com provides a user-friendly platform for finding and sharing knowledge. Ask anything and receive thorough, reliable answers from our community of experienced professionals.

Some people use this rule to work out
how many hours' sleep each night
young children need.
tract the child's age in years from 30,
ten divide the result by 2
Sanjay is 8 years old.
Use the rule to work out how many
hours' sleep he needs.