he copy machine runs for 20 seconds and then jams. about how many copies were made before the jam occurred explain

Empty box + box + empty box fill in the box is equal to 30 how

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]