Food delivery
0-day streakReview

Your progress

Level 1

0 XP100 XP to level 2
0day streak
0best streak
0topics started
0cards reviewed
    Review cards

    Progress is stored only in this browser. No account is required.

    Layer 2 · Quick check · 1 min

    Did it stick?

    3 questions. Tap an answer to see why.

    Question 1 of 3

    At 8 pm, 5,000 app opens a second each have 4,600 restaurants nearby. How should the feed decide what to show?