Which graph best represents -5y=-6x+15

Find the slope of the line passing through a pair of points

Find the zeros of each function. f(x) = x^2 + 5x - 6

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.