Approximately how many degrees are in the measure of an interior angle of a regular seven sided polygon?
102.9
128.6
180.0
231.4

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

2/3(-6y+9x) expand each expression using the distributive property

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.