1supervisor for every 4 trainee. if i have 2 supervisors for 20 trainees what is the minumm number of additional supervisor i must hire?

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.

1. what is the measure of ∠abc? what is the measure of ∠abd?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?