Billy bought a box of fruit that weighed 57⁄8 kilograms. If he bought a second box that weighed 63⁄8 kilograms, what is the combined weight of both boxes?

The heaviest 16% of all men in weight weigh more than how many pounds ?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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.