Hel can y'all help solve this? 10b -8 < -28 or 8 -6b < -4

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.

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

Jennifer taking a quiz and has answered 13 questions so far. if there are 25 questions on jennifer test, how many questions does she have left to answer