A bird leaves its nest and travels 10 miles per hour downwind for x hours. On the return trip, the bird travels 2 miles per hour slower and has 4 miles left after x hours.

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π