Answer:
11 marbles
Step-by-step explanation:
Let x = no. of marbles-Alex
3x = no. of marbles-Billie
3x - 9 = no. of marbles-Chris
x + 3x + 3x - 9 = 68
7x - 9 = 68
7x = 77
x = 11
60 miles because 2160 divided by 36 = 60
Answer:
2428.6
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
C is correct because when doing the numbers you'll see it <333