Question

An online bookstore is having a sale. All

paperback books are $6.00, with a flat
shipping fee of $2.50. Write an equation
that represents the total cost c based on
buying b books. Identify the independent
and dependent variables and how the
dependent variable changes in relation to
the independent variable.

Please help

Answer 1

6.00B+2.50=C
The independent variable is 2.50 because it is a flat fee, In other words it doesn’t change. The paper books are each 6.00 dollars, since we do not know how many books we are buying, the amount of money for the books alone is unknown and must therefore be dependent on how many of these books are being bought.
Hope this helps, have a nice day.