Show how you would mentally calculate the following. state what method/methods and/or properties you are using:
8 * 25 * 7 * 4
asap this is due ! : (

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

27 is what percent of 108? 27 is % of 108

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.