45. think about a plan the united states mint reported at the end of 2006 that the
unit cost of producing and distributing a penny was 1.21¢. what percent of the
value of a penny is this cost? what can you conclude about the cost of making
pennies?
• how can a model you to visualize the problem?
• how can you use a proportion or the percent equation to solve the problem?

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

See attachment below and find the equivalent of tan(∠qsr)

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.