Plz help and if you don't answer correctly i will report

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Give me the equations of two lines that have the same slope but are not parallel.

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics