Simplify the expression. Assume that all variables are positive when they appear.
+ 3
+ 2
A. 19
B. 5
C. 5
D. 19
Answer: D
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The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature 73°?
A. 5 p.m. B. 10 a.m. C. 10 a.m. and 11 a.m. D. 9 a.m.
Solve the problem.While on a business trip, Amy pays $150 per day to stay in a hotel, plus $20 per meal purchased at a restaurant. Amy's company will reimburse her at most $700 for the entire trip. Let d = the number of days and m = the number of meals. (a) Write an inequality that describes Amy's trip expense limitations. (b) Graph the inequality. Because d and m must be non-negative, restrict the graph to Quadrant I. (c) If Amy stays in the hotel 2 days and purchases 5 meals at restaurants, will she be within her budget?
A. (a) m ? 35 - 7.5d;
(b)
(c) yes
B. (a) m ? -35 + 7.5d;
(b)
(c) yes
C. (a) m ? 35 + 7.5d;
(b)
(c) no
D. (a) m ? 35 - 7.5d;
(b)
(c) no
Solve the logarithmic equation.log3(x + 2) + log3(x - 2) = 1
A. 7
B. 
C. 3
D. 
Solve for x.-0.7x + 1.15 = -0.4x + 2.95
A. -6 B. -54.545 C. -16.364 D. 6