What are tips and tricks for adding, subtracting,
dividing and multiplyingme

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Standard deviation of 19,29,21,22,23

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?