Simplify this expression. Assume that x is nonzero.
x^−11•x^2

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?

Solve for x. −3/4(x+2)=6 enter your answer in the box

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.