The number N (in billions) of debit card transactions can be

Last updated: 7/17/2022

The number N (in billions) of debit card transactions can be approximated by the equation N= 3.2x+8.8, where x is the number of years since 2000. In what year were there 28,000,000,000 debit card transactions? There were 28,000,000,000 debit card transactions in the year