solve the problem.
7. Dandy was born 6 years before Nuel. In 2000, Dandy's age was 2 years more than four times the age of Nuel in 1995. How old will Nuel be in 2020?
8. Tata Jose plans to construct a bookcase with three shelves as shown. The height of the case is to be 60 cm more than the width and only 6 meters of wood is available What should be the dimension of the bookcase?
9. A jeepney leaves Ronnie's house at 60 km per hour. Two hours later, a taxi leaves the same place at 80 km per hou. How long will it take the taxi to overtake the jeepney?
10. How many liters of distilled water must be added to 80 liters of a 60% acid solution to obtain a 50% acid solution?


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