WHAT IS THE CONSTANT OF PROPORINALTY brianly reward will be given for the correct answer and tons of points.

Explanation:

Pick any point on the diagonal line, that isn't the origin, and divide the coordinates like so: k = y/x

For example, the point (x,y) = (100,250) leads to k = y/x = 250/100 = 2.5

Or you could pick (x,y) = (300,750) which leads to k = y/x = 750/300 = 2.5

Direct proportion equations are always in the form y = kx with k = y/x being the constant of proportionality.

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: