The cost to rent skis at a local sporting goods store is $15 plus $20 per day. Which equation models the relationship between the total cost to rent, c, and the length of the rental in days, d?
c = (15 +20)
c = 15d + 20
c = 200 + 15
O c = (15+ d)20

98 point question what is the record for most points in one

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.

Find the maximum value of p= 4x + 5y subject to the following constraints :