A boat traveled 275 miles each way downstream and back. The trip downstream took 11 hours. The trip back took 55 hours. Find the speed of the boat in still water and the speed of the current.

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c, with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3