Solve the problem.Some people must eat a low-sodium diet with no more than 2000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cookie, a person would ingest 149 mg of sodium. If a person ate 8 pretzels and 8 cookies, he or she would ingest 936 mg of sodium. By eating 6 crackers and 7 pretzels, a person would take in 535 mg of sodium. Which of the following statements is true?
A. A cracker contains 30 mg of sodium.
B. A cookie contains 71 mg of sodium.
C. A pretzel contains 49 mg of sodium.
D. A cracker contains more sodium than a cookie.
Answer: C
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?Gas costs $3.10 a gallon. Which of the following represents the function that expresses the independent variable as a function of the dependent variable? ?
A. ?x = 3.1y, where y is the independent variable and x is the dependent variable. B. ?y = 3.1x, where x is the independent variable and y is the dependent variable. C. ?y = 3.1x, where y is the independent variable and x is the dependent variable. D. ?y = 3.1, where y is the independent variable and the dependent variable. E. ?None of the above.
Provide an appropriate response.The process of amortization includes which of the following?
A. a specific length of time B. equal payments C. variable rates D. both equal payments and a specific length of time
Express the vector as a product of its length and direction.2j
A. 2j
B. 2
C. 2(2j)
D. 
j
Solve the trigonometric equation in the interval [0, 2?) by first squaring both sides.sin x + 1 = 
cos x
A. 
, 
, 
B. 
, 
C. 
, 
D. 
, 
, ?