What is 31/10 as a mixed fraction

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

225/100 of last years cost. write each fraction as a decimal and as a percent

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality