Acertain arithmetic sequence has this explicit formula for the nth term: an=12+ (n-1) (5) the same sequence has this recursive formula: an = an - 1 + hurry

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!