Almost 2am now. ugh.

during one year, about 163 million adults over 18 years old in the us spent a total of about 93 billion hours online at home. on average, how many hours per day did each adult spend online at home?

also:
write each number in scientific form?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

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?

Which of the following tables represents exponential functions?