Solve for the indicated variable.
= 
+ 
, for A
A. A = 
B. A = 
C. A = 4 + B + C
D. A = 
Answer: D
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Write a percent proportion that could be used to answer the question. Do not solve. What percent of 73 calories is 36 calories?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.Carol and Lu Yi carry a total of 7.6 liters of water as they begin a day hike. How many gallons of water are they carrying, to the nearest tenth?
A. 7.2 gal B. 28.7 gal C. 2.0 gal D. 8.1 gal
Solve the system of equations by Gaussian elimination.
A. {(7, -6)} B. {(8, -6)} C. {(8, -7)} D. ?
Solve the quadratic equation by using the quadratic formula. If the equation has no real solutions, write "no real-number solutions."x2 + x + 6 = 0
A. 
B. 
C. 1 ± 
D. no real-number solutions