The admission fee at a small fair is $1.50 for children and $4.00 for adults. on the first day of the fair, there were 2200 people in attendance and $5050 was collected in admission fees. how many children and how many adults attended the fair on the first day?

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.

The graph of a curve that passes the vertical line test is a:

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old