Write on expression in symbols for each ward phrase. Let n be the input. To find a difference or quotient, write the numbers in the order in which they are stated.
The quotient of the input and four, decreased by five

As a manufacturer of golf equipment, the spalding corporation wants to estimate the proportion of golfers who are left-handed. how many golfers must be surveyed if we want 99% confidence that the sample proportion has a margin of error of 0.025? assume that a previous study suggests that 20% of golfers are left-handed.