The speed of a stream is 4 mph a boat travel 3 miles of stream in the same time it takes to travel 11 miles down stream what is the speed of the boat and still water

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Asalesperson has january sales of $20,000(1,$20,000) and april sales of $80,000 (4,$80,000). what is the rate of change?