Contact lenses improve lives. contact lenses are an example of a?

How can you tell if someone sent you a text message to your email instead of a email

Name the range function that would generate the following list of integers values: 0,1,2,3,4,5.

Peter is thinking of a number which isless than 50. the number has 9 factors.when he adds 4 to the number, itbecomes a multiple of 5. what is thenumber he is thinking of ?