Which expression is equivalent to am ÷ an? am − n am + n am ⋅ n am ÷ n

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

10x − 5y + 14 = 0 whats the answer pls

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!