51/4 is the correct answer
7 books with a cost of 28$ then a 2$ charge which will put him right at 30
Answer: 
Step-by-step explanation:
Give expression is,

Since L.C.M ( 12, 8 ) = 24





Answer:
75
Step-by-step explanation:
you have 600 = 8 and you want to break it down into just 1 hour so you divide both sides by 8
600/8 = 75