Tim bought 4 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 42 cards left. how many cards did tim start with?

The answer is 80.

Explanation:  42 x 2 = 84.  The quest asks how many he STARTED with, meaning we can subtract the recently purchased 4.  84 - 4 = 80.

40 is the final : )

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.