The fastest moving insect is the large tropical cockroach. it scurries at speeds of up to 2.3 feet per 30 seconds. how many miles per hour does the roach travel?

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?