Answer:
The number is 1203
Answer below is correct :)
Step-by-step explanation:
Please mark brainliest if it helps! =D
That "shell" figure is supposed to represent 0.
So the number
•••
(shell)
•••
is the base-20 number 303₂₀, which in base-10 is
303₂₀ = 3 × 20² + 0 × 20¹ + 3 × 20⁰ = 1203