Answer:
$30
Step-by-step explanation:
Find the cost per marker.
Given: 8 markers = $20
Divide 8 from both sides.
Let x = amount of markers.
(8x)/8 = (20)/8
x = 2.5
Each marker costs $2.50
Now, multiply 12 with $2.50
2.50 x 12 = 30
$30 is the cost of 12 markers.
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