Answer:
68°F
Step-by-step explanation:
-24°F + 92F° = 68°F
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68
92-24=68
B
Profit = total revenue - total cost
total revenue = 80 x b
total cost = 520
the profit has to be at least $1240
80 x 22 = 1760
1760 - 520 = 1240
b is correct
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line D
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Answer for (a) -2x^4/3
Answer for (b) 2^5x/4^3x