What expression is equal to 3/5

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

What is the difference between the predicted value and the actual value

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept