Waiting period. Jeff, a local traffic engineer, has designed a new pedestrian foot bridge that is capable of handling the current traffic rate of 300 pedestrians daily Once the traffic rate reaches 1,200 pedestrians daily, however, the bridge will require a new bracing system. Jeff has estimated that traffic will increase annually at 3% How long will the current bridge system work before a new bracing system s required? What if the annual ta c rate in eases at 10% annualy? At what tra c increase rate will the current system last only 10 years? lf the traffic rate inreases at 3% annually, how long will the present bridge system work before a new brac system is required? years (Round to two decimal places.) Inco