Mr. nolans code for his atm card is a 4-digit numbers the digits of the code ar e the prime factors of 84 listed from least to greatest what is the code for mr nolans atm card?

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!