Please help!! I need Thai answer soon, will mark brainless

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

One integer is 8 times another. if the product is 72, then find the integers

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.