Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.t-5 ? t2 ? t-9
A. t12
B. 
C. t16
D. 
Answer: D
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Laura's chocolate store is famous for its "Chocnut", a unique mix of chocolate and nuts. A Supreme box of Chocnut has 
pounds of chocolate and 
pounds of nuts. A Deluxe box has 
pounds of chocolate and 
pounds of nuts. John bought 2 Supreme boxes and 2 Deluxe boxes of Chocnut. What is the total weight of his purchase?
A. 35
lb
B. 31
lb
C. 17
lb
D. 21
lb
Determine whether the ordered pair is a solution for the given equation.
x + 
y = 4, (4, 6)
A. Yes B. No
Solve the problem.In a test, a teacher gives 2 points for each multiple choice question answered correctly and 5 points for each short answer question answered correctly. If Jim correctly answered x multiple choice questions and y short answer questions, write an equation that shows the possible combinations of multiple choice questions and short answer questions if he got a total of 47 points.
A. 10 + xy = 47 B. (2 + x) + (5 + y) = 47 C. 2x + 5y = 47 D. 5x + 2y = 47
Solve the problem, if possible. Round your answer to the nearest tenth, when appropriate.A rectangular garden has an area of 12 ft by 5 ft. A gravel path of equal width is to be built around the garden. How wide can the path be if there is enough gravel for 138 ft2?
A. 5 ft B. 10 ft C. 3 ft D. 4 ft