Answer:
5 years
Step-by-step explanation:
Step one:
Given Information
Principal= $34,000
rate = 4.8%
SImple interest = $8,160
Required
The time T of the investment
Step two:
the expression for simple interest is

substitute

cross multiply we have

divide both sides by 163200

Y=1x-7 is the equation and -7 is the value of B