How are finance charges calculated?
a. intrest × previous balance
b. payment recived + finance charge
c. previous balance + new charges + principal
d. payment recived - finance charge

How to do this , and can some one explain

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.

What are the values of each variable in the diagram below?