Expand the following expression by using the distributive method 7(10-3x))

Which number line represents the solution set for the inequality - x 24?

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.

Find the solution to this system 2,1 1,-2 1,2 -1,2