Which of these is most likely a pair of independent variables?

Question

giobott09 · Answer

Choices?

anonymous · Answer

how fast you write and how fast you finish your assignment
your electricity consumption and your electricity bill
your electricity bill and your age
how fast you read and the time it takes you to finish a book
your monthly income and your monthly expenditures
NextReset

giobott09 · Answer

C.

anonymous · Answer

c your electricity bill and your age really?

giobott09 · Answer

Age is not related on how high your electricity bill is. Nor thus your electricity bill is dependent on your age. There is no proof.

anonymous · Answer

oh ok that makes sense thanks for explaining

giobott09 · Answer

np :) Medal please?

anonymous · Answer

how do you give metals thats what i was tryin to figure out i will give you one np

giobott09 · Answer

on my name on the right, theres a button that says best choice, click that and that will give me a medal! :D