Jenna has a bag of 4 marbles: 1 red, 1 blue, 1 green, and 1 purple. make a sample space for jenna picking two marbles at a time. how many outcomes are there?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!