A trucker drove 9 hours to deliver a shipment of lumber. Returning home with a lighter load, the trucker averaged 8 miles per hour faster than on the earlier trip. After 7 hours, the trucker was only 60 miles from the starting point. The equation 9 s equals 7 open parentheses s plus 8 close parentheses plus 60 models the situation, where s represents the speed traveling to the delivery site. What is the value of s, in miles per hour?

How do you find the circumfrance of a circle?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

597008.439431 to the nearest thousand