1 to simple interest
2 to distance
3 to rate of interest
4 to time money is invested
5 to time spent driving
6 to rate of speed
All these given roots are contained in option C.
The given equation is :
Roots =
Hence these lie in between
Dividing the parallelogram in half and applying trigonometry is the easiest solution for me.
Need to find the amount of the discount first
(9 - 6.75) = 2.25$
then find the %
(2.25/9) * 100 = 225/9 = 25%