Cost and scope depend on multiple factors: project complexity, number of deliverables, formats, timeline, quality requirements and resources involved.

The first results (clicks, visits) appear immediately. Campaign optimization takes 2-4 weeks. Stable, predictable results are achieved after 1-3 months of continuous optimization.

Main types are: Search (search ads), Display (banners), Shopping (e-commerce products), YouTube (video), Performance Max (all networks), Discovery (Gmail, Discover). Selection depends on the goal.

Yes - a landing page is necessary. Page quality affects Quality Score and ad costs. An expert can help optimize the page for conversions or recommend specialists.