What instrument does your instructor say he plays?

Solve the problem.The temperature at the South pole was 19° at 8 am. At 3 pm, it was -49°. By how many degrees did the temperature drop?

Solve the problem.Carlos averages 28 miles per gallon of gasoline in his car. How far can he travel on 17 gallons of gasoline?

Classify the statement as true or false, assuming that a and b are integers. | a – b | = | b – a |

Solve the problem.Under typical conditions,  ft of snow will melt to 2 in. of water. To how many inches of water will  ft of snow melt?

Suppose you want to solve the following problem. A teacher can grade 7 essays in 2 hours. At this rate, how many essays will she be able to grade in 5 hours? Which of the following proportions will give the correct answer? (Select ALL that apply.)

Perform the indicated operation. Express your answer in simplest form. Change all improper fractions to mixed numbers.  

Answer the question.Order the rational numbers in increasing order; 

Provide an appropriate response.True or False? The difference of any two positive integers is a positive integer.

Alan walked mile to the store and then another  miles to his friend’s house. How far did he walk?