20 points + brainliest! what is the 3^term in the sequence? < 33

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Factor the expression using gcf 9b+45