Three consecutive multiples of 10 have a sum of 600. What is the greatest of these numbers, and why?
E. 190
F. 200
G. 210
H. 220

Which statement about the graph of y = 8(0.25)^2

Which expression is equivalent to -5(3x - 6/7)

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.