An article is bought and sold with a profit of 25% of selling price. find the profit percent?

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.

30 points if you answer all 3 questions with work!

If an object looks the same on both sides when divided by a plane, it has gos rotational symmetry. no plane of symmetry. o reflectional symmetry. o no axis of symmetry.