What equation represents the relationship between a m and b?

If you could answer these your a life saver

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase