The revenue, in dollars, of a company that makes toy cars can be modeled by the polynomial 3x2 4x – 60. The cost, in dollars, of producing the toy cars can be modeled by 3x2 – x 200. The number of toy cars sold is represented by x. If the profit is the difference between the revenue and the cost, what expression represents the profit? 3x – 260 3x 140 5x – 260 5x 140

5. to comply with implementation requirements, shops must ensure that paint booth exhaust systems use efficient spray booth filters. a) 75% b) 100% c) 50% d) 98%

The authors use the word “backbone” in lines 3 and 39 to indicate that

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.