Answer:
420
Step-by-step explanation:
45 Cards
12 friends invited; 1/2 came 12 x 1/2=6
Let x stand for the number of cards each friend received
Armando kept 3
6x = 45-3
6x = 42
__ __
6 6
x = 7
Each friend received 7 cards
Answer:
11. 90 ( i think )
Step-by-step explanation:
you add the hight and width then multiply by two