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DedPeter [7]
3 years ago
11

Someone please help me I’m not good in math

Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0
The missing factor is (a -1) I believe. If you foil (5a + 9)(a - 1) you would get 5a^2 + 4a - 9.
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Step-by-step explanation:

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Amuseumcharges forgeneraladmission and exhibitions. Admission and 3 exhibitionscosts $45. Admission and 5 exhibitionscosts $65.
leonid [27]

Answer:

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Step-by-step explanation:

From the information given, you can write the following equations:

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