A teacher surveyed his class about how many played a sport and worked part-time at a job. The Venn diagram shows her results. If a person from the class is randomly selected, what is the probability that person works part-time given that they play a sport? P( works | sport )

For each phone call robert makes,he pays $0.10 for the first minute and $0.05 for each additional minute. what is the cost for two 5 minute calls ? a $0.60b $0.30c $0.15d $0.45 show work.

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.

Pls will give ! pls i dont understand