Solve the inequality by using the graph of the function.f(x) < 0, where f(x) = 
.
A. (-?, -5] ? [1, ?)
B. [-5, 1]
C. (-?, -5) ? (1, ?)
D. (-5, 1)
Answer: C
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Music source A charges a monthly fee of $6.25 plus 99 cents per song. Music source B charges a monthly fee of $9.25 plus 79 cents per song. ? A: Find a formula that gives the monthly cost A, in dollars, of buying songs from Company A as a function of the number n of songs you buy in a month. ? B: Find a formula that gives the monthly cost B, in dollars, of buying songs from Company B as a function of the number n of songs you buy in a month. ? C: What number of songs purchased will give the same monthly cost for Company A and Company B?
What will be an ideal response?
Write the number in scientific notation.520,000
A. 5.2 × 104 B. 5.2 × 105 C. 5.2 × 10-4 D. 5.2 × 10-5
Graph the inequality on a number line.x < 5
A. 
B. 
C. 
D. 
Find the area of the triangle.
A. A = 12 m2 B. A = 24 m2 C. A = 44 m2 D. A = 22 m2