wolf brothers help me out, please no link

Answer:
21 cards left to be signed
Step-by-step explanation:
1/3 of 72 is 24
So Harrison signed 24
3/8 of 72 is 27
Sp Alwine signed 27
24+27=51
So 72-51=21
21 cards left to be signed
Answer:
Step-by-step explanation:
We know that:
Solution:
Hence, 21 cards are left when Harrison signs 1/3 of the cards and Alwine signs 3/8.