IT'S URGENT! A boy skates across a pond with the wind and returns against the wind. The speed of boy without wind is 15 mph, and the speed of the wind is 2 mph. If he takes 40 minutes for the round trip, find the width of the pond. Also find the boy's average speed on the round trip. Express your answer as decimals to the nearest tenth.

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Runners run around the school's football field. the cross country coach determines that the width of the field is seventy yards shorter than the length. part a write an expression that represents the perimeter of the football field. let x represent the length of the football field. include parentheses in your expression. next, write an equivalent expression that does not include parentheses. what property or properties did you use to simplify? explain. part b the cross country coach later determines that the length of the football field is 120 yards. all students must run five laps. using your answer from part a, determine the actual number of yards that each athlete must run in the tryouts. in order to make the team, students must complete the laps in 6 minutes. how quickly must they run each lap?