How would I find sn (the nth partial sum) given the series ln(1+1/n), n=1 to infinity

For how answer my question this will be the last question can you answer in math subject

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60