Tessa won £25 and she gave her winnings to her five children.
She gave her first child £1 plus 16 of the money remaining.
She gave her second child £2 plus 16 of the money remaining.
She gave her third child £3 plus 16 of the money remaining, and so on...

Without doing any calculations, which child do you think ended up with the most money?

Work out how much each child received.

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

The surface area of the triangular prism is .