Answer:
the dependent variable is distance (option B)
Explanation:
Given:
The speed of a car = 45 miles per hour
To find:
the dependent variable
Dependent variable are variables which depend on another quantity
from the options:
a) 45 is not a variable but a constant
b) speed = distance/time
distance depends on time. A faster or lower time time will affect the distance covered
c) The car is not a variable
d) the time is an independent variable
Hence, the dependent variable is distance (option B)
