5400*0.04(rate)=216
Because it's simple interest for 7 years, 216*7 should be the answer
So $1512
Dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
Midpoint : m = (x1 + x2) / 2, (y1 + y2)/2
(6,7)....x1 = 6 and y1 = 7
(14,11)...x2 = 14 and y2 = 11
time to sub
m = ((6 + 14) / 2, (7 + 11)/2)
m = (20/2) , (18/2)
m = (10,9) <==== ur midpoint
The answer is 9.16 *10^-6.
