Solve the inequality. Give the solution set in both interval and graph forms.5x + 3 < -17 and 7 - 5x > -13
A. (-?, -4)
B. (-4, 4)
C. (-?, 4)
D. (-?, -4) ? (4, ?)
Answer: A
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Solve the problem.A certain area of forest is populated by two species of animals, which scientists refer to as A and B for simplicity. The forest supplies two kinds of food, referred to as F1 and F2. For one year, species A requires 1.45 units of F1 and 1 units of F2. Species B requires 2.0 units of F1 and 1.9 units of F2. The forest can normally supply at most 833 units of F1 and 453 units of F2 per year. What is the maximum total number of these animals that the forest can support?
A. 312 animals B. 453 animals C. 184 animals D. 886 animals
Solve the system of equations by using substitution. 
A. x = 10, y = 10 B. x = 0, y = 10 C. x = 0, y = 0 D. x = 10, y = 0
Solve.A ladder that is 17 feet long is 8 feet from the base of a wall. How far up the wall does the ladder reach?
A. 3 ft
B. 
ft
C. 225 ft
D. 15 ft
Fill in the blank to make the trinomial a perfect square.x2 - 3x + 
A. 
B. 9
C. - 
D. 0