We found that 15 customers from a random sample of 60 would be willing to buy a software upgrade that costs 100. if the upgrade is to be profitable you will need to sell it to more than 20% of your customers. do the sample data give good evidence that more than 20% are willing to buy the software upgrade?

We can measure temperature in two different common units: degrees celsius and degrees fahrenheit. the variable f represents the temperature in degrees fahrenheit that is equivalent to c, the temperature in degrees celsius. f=32+1.8c what is the temperature increase in degrees fahrenheit that is equivalent to a temperature increase of 10 degrees celsius?