Suppose a scientist has 13 liters of acid and she needs 16 liters for an experiment. How many more liters of acid does she need for the experiment?

Which equation best describes this situation?

a. 16+x=13

b. 13+x=16

c. x=13

d. x=16

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?

Describe a situation that you could represent with the inequality x< 17

What is the value of x? enter your answer in the box.