Answer:
x=3, y=-2. (3, -2).
Step-by-step explanation:
4x+2y=8
5x+3y=9
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simplify 4x+2y=8 into 2x+y=4
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2x+y=4
5x+3y=9
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y=4-2x
5x+3(4-2x)=9
5x+12-6x=9
-x=9-12
-x=-3
x=3
2(3)+y=4
6+y=4
y=4-6
y=-2
$13.20. ($10.75x1.08=11.29 $11.29x1.17=$13.20)
volume = l x w x h
so 4 x 2 x 8 = 64 cubic inches per brick
64 x 3 = 192 cubic inches total
Answer:
I think it is one but i am not really sure
Step-by-step explanation:
