In circle o, ac and eb are diameters the measure of arc dc is 50. what is the measure of ebc

The correct answer is:

220°

In Circle O, AC and EB are diameters the measure of arc DC is 50. So the measure of EBC is 220 degrees.

the right system of equations to describe the situation would

be on the form:

x1 = 8000 + y1*t

and

x2 = 8000 + y2*t

where x1 and x2 represents the total money of imogene and her

friend respectively at the end of t years.

now for the value of amount earned, y1 and y2:

y1=8000*0.08

y2=2000*√(t-2)