1- 42 students is % of 85
2- 34 red marbles is 60% of marbles
3- 30% of $16 is $
4- 12 is % of 400
5-yesterday, bethany sent 80 text messages. she said that 15%of those messages where to her best friend. how many text messages did bethany send to her friend yesterday

3. solve the given inequality and graph the solution on a number line.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?