Answer:
18x cm
Step-by-step explanation:
A=BH
81x²cm²=B(4.5x cm)
81x²cm²÷(4.5x cm)= 18x cm
a muffin costs 2.20 and a quart of milk costs 90 cents.
you multiply all numbers by all numbers i have example
5 + 2x = 5x + 4
-2x -2x
5 = 3x + 4
-4 -4
1 = 3x
Divide by 3 on both sides.
1/3 = x
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