Hi tutor, appreciate if you can help me with this question (prefer in Excell/ WORDS for clear vision - hand written is not easy to read. thank you

6. A retailer purchases 500 boxes of pears at RM8 per box. Experience indicates that about 4% of these boxes will be spoilt and have to be discarded. The retailer then sets the selling price, taking into account a net profit of 30% on cost. The operating expenses incurred are 9% of the cost. Calculate the selling price of the pears. (4 Marks) 7. The proprietor of Carson Hardware has decided to set up a sinking fund for the purpose of purchasing a set of computers in two years time. It is expected to cost RM30,000 for the computers and software that needs to be purchased. If the fund earns 10 percent interest per year compounded quarterly, determine the size of each quarterly installment the proprietor should make into fund. (3 Marks) 8. The net price of an item listed at RM480 after a trade discount of X % is RM336. Find the value of X and the amount of trade discount offered