Divide.7.2 ÷ 0.09
A. 8
B. 0.08
C. 0.8
D. 80
Answer: D
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Solve the problem.Trader Tower stands at 1645 feet high. Exchange Emporium is 812 feet tall. How much taller is Trader Tower than Exchange Emporium?
A. 833 feet B. -833 feet C. 2457 feet D. -2457 feet
Solve the problem.Bruce is a retired carpenter who builds patio chairs and dog houses that he sells at the local flea market. It takes him 4 hours to build a dog house and 5 hours to build a patio chair. Bruce can work no more than 40 hours per week and he must produce more chairs than dog houses. Write a system of inequalities to describe this situation and solve the system by graphing. Use D for the number of dog houses and P for the number of patio chairs produced in a week. 
A. 
B. 
C. 
D. 
Collect like terms.3.2a + 7.9b - 2.1a - 3.8b
A. 1.1a + 4.1b B. 1.1a + 11.7b C. 5.3a + 11.7b D. -1.1a + 4.1b
Evaluate the polynomial.2x2y - xz3 for x = -3, y= 1, and z = 2
A. 60 B. 18 C. 42 D. -6