Which equations can you use to find 27.13 - 19.85? Choose all the correct answers.
19.85 + n = 27.13
27.13 + n = 19.85
U n = 19.85 +27.13
19.85 = 27.13 -
27.13 = n - 19.85

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

The surface area of the triangular prism is .

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?