Perfect Parties, a party supplies store, always gets busy around graduation. Currently, they have 3 orders: one for 500 balloons, one for 275 balloons, and one for 125 balloons. Each balloon must be tied with a 5-foot-long ribbon. How many yards of ribbon do they need for their current orders?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Is there an x intercept in the equation 60*1.15^x

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.