2balls can complete a full rotation in 120 min. how many balls can complete a full rotation in 180 min

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.

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Find the amount of simple interest earned for depositing the given principle in an account if $2200 is invested at 5.5 % for 6 months