Answer:
<em>147 toys</em>
Step-by-step explanation:
<em>for 1 person, 28toys/8hours = 3.5toys/ 1hour </em>
<em>for 42 people, 42 * 3.5toys/ 1hour = 147 toys/hour</em>
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16x4 + 16x – 16x – 64
16x4 – 8x – 8x – 64
(4x2 + 8)(4x2 – 8)
16(x2 + 2)(x2 – 2)
