y=2x−1
5x−4y=1


Is (1,1) a solution of system

A. Yes
B. No

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 measure of angle afe? 79 81 91 99

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?