Give operation in full.
Question 7. What will it cost to carpet a room 36 feet wide by 72 feet long with 3/4 width carpet at $2.12 per yard, including cost of carpet-lining at 11 cents a square yard and 12 cents a yard for making and laying the carpet?
Give operation in full.
Question 8. A owned 7/8 of a ship and sold 4/5 of his share to B, who sold 5/9 of what he bought to C, who sold 6/7 of what he bought to D. What part of the whole vessel did D buy?
Give operation in full.
Question 9. A man bought a cargo of wool and sold seven thousand and forty-five ten-thousandths of it. How much had he left?
Give operation in full in decimal fractions.
Question 10. A merchant imported from Bremen 32 pieces of linen of 32 yards each, on which he paid for the duties, at 24 per cent, $122.38, and other charges to the amount of $40.96. What was the invoice value per yard, and the cost per yard after duties and charges were paid?
Give operation, in full.