TOOLS Use the unit fraction 1/9 to represent the space between the tick marks on the number line. Write an expression involving subtraction that is being modeled. Then find the difference.

A number line with two arrows on top of it. It has two tick marks to the left of 0 and four tick marks to the right of 0. One arrow begins at 0 and ends at the third tick mark to the right of 0. Another arrow begins at the third tick mark to the right of 0 and ends at the second tick mark to the right of 0.

An expression is ___

The difference is ___

What is the product? (x2+3y+7) [yy+1)

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint.how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

Atest of sobriety involves measuring the subject's motor skills. a sample of 31 randomly selected sober subjects take the test and produce a mean score of 64.4 with a standard deviation of 2. a claim is made that the true mean score for all sober subjects is equal to 65. for each part below, enter only a numeric value in the answer box. for example, do not type "z =" or "t =" before your answers. round each of your answers to 3 places after the decimal point. (a) calculate the value of the test statistic used in this test. test statistic's value = (b) use your calculator to find the p-value of this test. p-value = (c) use your calculator to find the critical value(s) used to test this claim at the 0.2 significance level. if there are two critical values, then list them both with a comma between them. critical value(s) =