Dungeons & Dragons: Multiclass Spell Slots, Explained
The Multiclass Spellcaster: Spell Slots per Spell Level table on page 165 of the Player’s Handbook gives you the total number of spell slots you have.
The Best D&D 5e Cleric Spells - CBR
When you multiclass into multiple spellcasting classes (like Wizard and Cleric), your spell slots are combined into one pool, but your spell lists stay separate.
Warlock Spell Slots - Baldurs Gate 3 Wiki - Fextralife
Spell Slots. The Warlock Features table shows how many spell slots you have to cast your Warlock spells of levels 1–5. The table also shows the level of those slots, all of which are the same level.