The sum of two consecutive integers is 89 what are the two integers

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

What would the rule be for the reflection of y=-3

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.