The answer is going to be letter B
change=100(63-58)/58
change=100(5/58)
change=500/58
change=250/29
change=8.62
If the store sold 9 books for every 2 bookmarks they sold 9 books 8 times selling 72 books in total so now you have to multiply 8*2 to get how many bookmarks were sold that day.
Answer:
Step-by-step expl(100%). New Price (Pay 80%). Expression. Discount Amount. (20% Off) ... 100. 10.20x50-$10. 50-10=40. 50-(0.20 x 50). SO-10. 1140. 50. 0.20 x 28 = $5.60.
