A train leaves at 10.12 and arrives at its destination at 11.18. If the train travelled 74 km, what was it's average speed in km/h?
Give your answer rounded to 1 dp.

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?

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Find the distance between c and d on the number line c=3 and d=11