Katarina drew a map to plot her running path as shown below. A running path is 0.5 + 2.2 + 0.9 + 3.2 inches long.

If the total distance that she ran is 11.56 miles, how many miles does 1 inch on her map represent? Round to the nearest tenth if necessary.
0.4 miles
0.6 miles
1.7 miles
2.1 miles

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Which of the following is not a subset of {1,2,3}?