Answer:
The answer is C) The number of pounds of dirt in a wheelbarrow with each 5 pound shoveled scoop of dirt.
Step-by-step explanation:
Of all the choices:
A) The cost of a taxi cab ride of $2.00 per mile with an initial fee of $3.00.
B) The height of a tree that grows 1 foot a month with a starting height of 4 feet.
D) The cost of a gym membership with a cost of $22.00 per month and a one time sign-up fee of $50.00.
The above all have an initial/starting/one-time constant in the relationship. So the only true proportional relationship is C) The number of pounds of dirt in a wheelbarrow with each 5 pound shoveled scoop of dirt.
