At a popular italian restaurant chain, a bowl of spaghetti without tomato sauce contains 400 kilocalories. a standard serving size (1/2 cup) of cooked spaghetti has about 110 kilocalories. approximately how many standard servings of pasta are in the restaurant meal?

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?

2.5 milligrams is equivalent to how many grams

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25