The Langs family drove 225 miles to a beach. Most of their travel was on interstate highways. • The Langs drove 65 miles per hour on the last 45 miles of their trip. • On average, the Langs traveled 20 miles on one gallon of gas. • The gas tank on the Langs' car holds 15 gallons of gas.

• The Langs had a full tank when their trip began. How many times did they stop to refill the tank before they reach the beach

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️