John spent 1/9 of his savings on his project in mathematics and 2/3 on his brother's gift. What fraction of his saving was spent?​

Awork system has five stations that have process times of 5, 9, 4, 9, and 8. what is the throughput time of the system?

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 axis of symmetry of the function f(x)=-(x+ 9)(x-21)