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.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?