LINE SEGMENT....................
I guess you mean simple interest
I = PRT/100
50000 = 548048 * 9 * t / 100
t = 50,000 * 100
------------------- = 1.013699 years
548048* 9
multiply this by 365 gives 370 days
a) (2/5) x 35 = 14 students received invitations
b) 35-14 = 21 students didn’t receive invitations
If two angles are supplementary, their sum equals 180 degrees
3.70 and 3.700 are some examples to get you started.