If the large piston of a hydraulic press has an area of 50cm to the second power(0.05m to the second), what will the total force upon it if a pressure of 100,000 Pa is produced by a small piston?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.