Solve the problem.On a buying trip in Los Angeles, Rosaria Perez ordered 120 pieces of jewelry: a number of bracelets at $4 each and a number of necklaces at $7 each. She wrote a check for $570 to pay for the order. How many bracelets and how many necklaces did Rosaria purchase?
A. 95 bracelets and 25 necklaces
B. 85 bracelets and 35 necklaces
C. 100 bracelets and 20 necklaces
D. 90 bracelets and 30 necklaces
Answer: D
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Given f(x) and g(x), find the composition.f(x) = 4x2 + 4x + 8; g(x) = 4x - 6Find (g ? f)(x).
A. (g ? f)(x) = 4x2 + 16x + 26 B. (g ? f)(x) = 16x2 + 16x + 38 C. (g ? f)(x) = 16x2 + 16x + 26 D. (g ? f)(x) = 4x2 + 4x + 2
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = -8x4 - 3x3 - 9x2 - 5x + 2
A. 1 positive; 1 or 3 negative B. 1 positive; 2 negative C. 0 or 2 positive; 1 or 3 negative D. 1 positive; 1 negative
Decide whether the pair of lines is parallel, perpendicular, or neither.The line through (-20, 5) and (-4, 7) and the line through 
and 
A. Parallel B. Perpendicular C. Neither
Solve.The square garden in the figure measures x yards on each side. The garden is to be expanded so that one side (the top of the figure) is increased by 4 yards and the adjacent side (the right side of the figure) is increased by 2 yards. Write a polynomial in descending powers of x that expresses the area of the larger garden. Then use the polynomial to determine the area of the larger garden if the original garden measures 5 yards on a side. 
2 yards
A. x2 + 6x + 8; 63 square yards B. x2 + 6x + 8; 31 square yards C. x2 + 6; 31 square yards D. x2 + 6; 63 square yards