45. if m angle r=40 degrees in circle o, what is m angle o
46. in the circle m bc=69 degrees, what is m angle bcp

When you answer this can you explain

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.

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax