Antonio flies from houston to philadelphia, a distance of about 1340 miles. his plane travels with the wind and takes 2 hours and 20 minutes. at the same time, paul is on a plane from philadelphia to houston. since his plane is heading against the wind, paul´s flight takes 2 hours and 50 minutes. what was the speed of the wind in miles per hour?

In the diagram of circle o, what is the measure of zabc?

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.

Which expression is equivalent to 64 - 9x^2?