Add or subtract.
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Answer: B
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Solve.Each day the commuter train transports x passengers to or from the city at $1.75/passenger. The daily fixed cost for running the train is $1200. Write an equation that relates the daily profit, P, in dollars to the number of passengers each day. Then use the equation to find the daily profit when the train has 920 passengers in a day.
A. P = 1.75x; $1610 B. P = 1.75x - 1200; $410 C. P = 1.75x + 1200; $2810 D. P = 1200 - 1.75x; $410
Graph the polynomial function. Factor first if the expression is not in factored form.f(x) = x3 +5x2 + 7x + 3
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Solve the problem. Write ratios in simplest form.Find the unit price for each option. Which is the better buy? 20-ounce bottle of pop for $1.60 40-ounce bottle of pop for $2.80
A. 20-ounce bottle: $0.92 per ounce; 40-ounce bottle: $1.07 per ounce. The 20-ounce is the better buy. B. 20-ounce bottle: $0.08 per ounce; 40-ounce bottle: $0.07 per ounce. The 40-ounce is the better buy. C. 20-ounce bottle: $0.07 per ounce; 40-ounce bottle: $0.08 per ounce. The 20-ounce is the better buy. D. 20-ounce bottle: $0.20 per ounce; 40-ounce bottle: $0.07 per ounce. The 40-ounce is the better buy.
Determine if the equation is a proportion.
A. Yes B. No