Rob is saving to buy a new MP3 player. For every $12 he earns babysitting, he saves $5. On Saturday rob earned $60 babysitting. How much money did he save?

Which one ? is the answer and how to find this answer

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents