Decide whether the pair of lines is parallel, perpendicular, or neither.3x - 4y = 208x + 6y = 20
A. parallel
B. perpendicular
C. neither
Answer: B
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Solve the problem.A recipe calls for 
cup of milk. How much milk should be used to make 
of the recipe?
A. 
cup
B. 
cup
C. 
cup
D. 
cup
Solve the problem.Find the area of the circular racetrack. Use 3.14 as an approximation for ? and round to the nearest square foot.
A. 45,216 ft2 B. 70,650 ft2 C. 25,434 ft2 D. 11,304 ft2
Find the marked price and sales tax. Round to the nearest cent.Total Sale: $52.72Sales Tax Rate: 7%
A. $48.81; $3.91 B. $49.27; $3.45 C. $31.01; $21.71 D. $49.74; $2.98
Write an expression to state the problem and simplify.An investor buys 90 shares of stock for d dollars per share. The next day two other investors each buy the same number of shares, but the price has risen by $5 per share. How much have the three investors spent?
A. 90d + 90(d + 5); 180d + 450 dollars B. 90d + 2 ? 90d + 10; 270d + 10 dollars C. 90d + 2 ? 90(d + 5); 270d + 900 dollars D. Cannot be solved