Solve the problem.The price of a shirt was reduced from $82.20 to $57.54 . What was the percent change in price of the shirt? Round to the nearest tenth of a percent, if necessary.
A. 32% decrease in price
B. 30% decrease in price
C. 31% decrease in price
D. 3% increase in price
Answer: B
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Write the indicated function.Elissa wants to set up a rectangular dog run in her backyard. She has 44 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.
A. A(x) = 24x2 - x B. A(x) = 22x - x2 C. A(x) = 21x - x2 D. A(x) = 23x - x2
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.10x2 + 7xy - 12y2
A. (2x - 3y)(5x + 4y) B. (2x + 3y)(5x - 4y) C. (10x + 3y)(x - 4y) D. Prime
Solve the system of equations.
A. x = 2 - 5z, and y = 3z - 1, where z is any real number
or {(x, y, z) |x = 2 - 5z, and y = 3z - 1, where z is any real number}
B. x = 2 + 7z, and y = -3z - 1, where z is any real number
or {(x, y, z) |x = 2 + 7z, and y = -3z - 1, where z is any real number}
C. x = 1 - 5z, and y = 3z - 
, where z is any real number
or 
D. x = -2 - 7z, and y = -3z -1, where z is any real number
or {(x, y, z) |x = -2 - 7z, and y = -3z -1, where z is any real number}
Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.g(x) = 7x2 + 84x + 203
A. V(-6, -49); I(0, 203); (-8.6, 0); (-3.4, 0) B. V(84, 203); I(0, -203); (-12, 0); (12, 0) C. V(6, -49); I(0, -203); (-13, 0); (1, 0) D. V(-42,-49); I(0, 203); (3.4, 0); (8.6, 0)