Hi help plz i’ll give 5 star and thanks^-^

What is the value of x in the following equation? -3x-2=2x+8

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

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.