B. Joey and Sylvia selected their cards randomly
right on plato, 100% :)
Answer:
Step-by-step explanation:
L = 3W
Perimeter = 2L + 2W = 2(3W) + 2W = 8W
8W = 65.6 cm
W = 8.2 cm
Just work this problem out backwards. First write out an equation.
(x+4)•3=30
Now solve :
(x+4)•3=30
3x+12=30
-12 -12
3x=18
/3 /3
x=6
Your answer is 6!
Hoped I helped!