What is the CP if SP is Rs:20 and profit is Rs:7​

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

Find the multiplicative inverse of 8-12i

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?