Add or subtract as indicated. Express the answer as a single polynomial in standard form.(5x6 - 6x4 + 7x) + (2x6 + 3x4 - 4x)
A. 7x11
B. 7x - 3x6 + 3x4
C. 9x6 + 8x4 - 10x
D. 7x6 - 3x4 + 3x
Answer: D
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Solve the problem.The recipe for a chocolate chip cake calls for 
pound of chocolate chips. If a bakery wants to make 20 cakes, how many pounds of chocolate chips will they need?
A. 20 pounds B. 5 pounds C. 16 pounds D. 4 pounds
Determine whether the following is always true or not always true. Given reasons for your answers.(u × v) ? w = u ? (w × v)
What will be an ideal response?
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.4 + 4 ? 
+ 4 ? 
2 + ... + 4 ? 
n - 1 = 
What will be an ideal response?
Solve the problem.Assume that the following table shows the market prices in dollars per pound that a trucker can get for his load of fruit in three cities: San Francisco (S.F.), Las Vegas (L.V.), and Los Angeles (L.A). 
A trucker has a load of 4000 pounds of peaches and 3000 pounds of apples. Use matrix multiplication to compute the total market value of his load in each of the three cities.
A. 
B. 
C. 
D. 