Question 650 • Crowley Credit Recovery Algebra II B
Each time he paints, he covers half of what remains unpainted. After five rounds, the unpainted portion is 150 × (1/2)^5 = 4.6875 ft², so the painted area is 150 − 4.6875 = 145.3125 ft². This is approximately 145.31 ft², choice B.
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