Solve the inequality. Express your answer using interval notation. Graph the solution set.x + 1 < 4
A. (-?, 3)
B. (-?, 5)
C. (-?, 5]
D. (3, ?)
Answer: A
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Use Newton's Law of Cooling to solve the problem.A dish of lasagna baked at 350°F is taken out of the oven into a kitchen that is 74°F. After 5 minutes, the temperature of the lasagna is 312.7°F. What will its temperature be 20 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 235°F. B. 224°F. C. 218°F. D. 229°F.
Find the sum without the use of a number line.-3.0 + (-5.5) + (-4.9)
A. 2.4 B. -13.4 C. -7.4 D. 3.6
Solve.To get credit for graduation, Brittany completed 20 hours of community service. She worked at a soup kitchen for 
of the time. She picked up litter along highways for 
of the time. The rest of the hours she spent tutoring younger children after school. How much time did Brittany spend tutoring?
A. 14
hours
B. 13
hours
C. 15
hours
D. 13
hours
Write an inequality to describe the situation.
x is greater than -7 and less than or equal to 7 A) -7 < x ? 7 B) -7 ? x ? 7 C) -7 < x < 7 D) -7 ? x < 7 E) 7 < x ? -7