Answer:
$630
Step-by-step explanation:
Calculation for her new premium if she transfers to the Superior Insurance Company
First step
Drivers aged 24 to 49 0.05
Discount for cars with antitheft device 0.11
Driving Course 0.03
Accident Free 0.06
TOTAL 0.25
Second step is to Calculation for her new premium
New premiun=$840*(1-0.25)
New premium =$840*0.75
New premium =$630
Therefore her new premium if she transfers to the Superior Insurance Company will be $630