Question: i need answer with step by step to help my son understand ? i will give gret feedabck with comment 10. A customer buys a

i need answer with step by step to help my son understand ? i will give gret feedabck with comment

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10. A customer buys a book that costs AED 35 which has been discounted by 25% but the customer still has to pay the 6% VAT on the discounted price of the book. What is the total amount the customer pays for the discounted book? Round AED 40 you answer to the the nearest fil.12. A holding tank for water is in the shape of a right cylinder. The inside of the tank has a diameter of 8.25 meters and a height of 3 meters. What is the volume of cubic meters of water that it will take to fill the tank to a 20 m 3 level 0.5 meter from the top rounded to the nearest whole number?13. A training field is designed by joining a rectangle and two semicircles. The rectangle is 100m long and 75m . 75me, 100my JubilJAL wide. (Use the value 3.14 for IT and round your answer to the nearest hundredths place) 175 m 100 m What is the length of a training track meter 4 running around the field?15. The price of a liter of petrol was AED 2.86 . AED 2.86 YU ji A Jugs yesterday. AED 2.79 . yay Today, the price is AED 2.79. What is the percentage decrease? Round your answer the nearest hundredth. %19. The results for a survey of 120 students who were selected randomly are listed below. 60 students have a mobile phone from the company A 36 students have a mobile phone from the company B 24 students do not have a mobile The total population of students was 380. Based on the data, what is the best approximation for the total number of students who have a mobile phone from the company B? 127 163 143 114

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