You jog 6/23 miles around a track each day. if you jogged that distance 4 times last week, how many miles did you jog?

Ill mark the brainliest if you me with the these three questions 7,8,9

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅