In 1950, the average prịce of a car was about $2000. This may sound inexpensive, but the average income in 1950 was much less than it is now. To
compare dollar amounts over time, use the formula V =4C,
where A is the old dollar amount, S is the starting year's Consumer Price Index
(CPI), C is the converting year's CPI, and V is the current value.
Show how you would rearrange the formula to find the old dollar amount.
S