Answer:
3x+y=16
x+6y=5
6x+2y=8
Step-by-step explanation:
A) 122 in^2, this is because 3 x 7 x 2= 42, 4 x 7 x 2= 56, 3 x 4 x 2= 24, once you add up all the sums it equals 122
Answer:
is c
Step-by-step explanation:
So in total, there are 7 marbles, (3 black + 4 red = 7 total marbles) and we want to find out how much black marbles are able to come out. So it would be 3/7. :)
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