Abookstore has a sale: jen wants to buy four books: for $10.00, for $12.00, for $15.00, and for $20.00. what is the smallest she could pay for these books during the sale? by what percent would the sale reduce the total cost of these four books?

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631