A newborn calf weighs 40 kilograms. Each week its weight increases by 5%. Let w be the weight in kilograms of the calf after t weeks. Which of the following best explains the relationship between t and w?
A) w = 40 + 0.05t
B) w = 40 * 1.05ᵗ
C) w = 40t + 5
D) w = 40 / (1.05)ᵗ
