PLEASE DO PROBLEM 8.7.5 FOR A THUMBS UP RATING

8.7.1 Determine the weighted curve numbers for a watershed with 60 percent residential (1/4-acre lots), 20 percent open space, good condition, and 20 percent commercial and business (85 percent impervious) with corresponding soil groups of C, D, and C. 8.7.2 Rework example 8.7.1 with corresponding soil groups of B, C, D, and B. 8.7.3 The watershed in problem 8.7.1 experienced a rainfall of 5 in; what is the runoff volume per unit area? 8.7.4 Rework example 8.7.2 with a 7-in rainfall. 8.7.5 Calculate the cumulative abstractions and the excess rainfall hyetograph for the situation in problems 8.7.1 and 8.7.3. The rainfall pattern is 1.5 in during the first hour, 2.5 in during the second hour, and 1.0 in during the third hour