What does 5-7 sentences mean?

"5-7 sentences" means a piece of writing that should contain a minimum of five sentences and a maximum of seven sentences. It's a common instruction given in writing exercises, assignments, or prompts to ensure a concise and focused response.

This type of instruction helps writers develop their ability to express their ideas clearly and succinctly, without unnecessary details or rambling. It also encourages them to be mindful of their audience and the overall purpose of their writing.