Solve the problem.A machine can fill 1154 boxes of cereal in 0.2 hour. How many boxes of cereal can it fill per hour?
A. 3847 boxes per hr
B. 5770 boxes per hr
C. 1154 boxes per hr
D. 231 boxes per hr
Answer: B
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Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary.x + y = 3x - y = -4
A. 
B. 
C. ?
D. 
Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = -9x3 + 8x
A. Even B. Odd C. Neither
Solve the problem.An explosion causes debris to rise vertically with an initial velocity of 112 feet per second. The function 
describes the height of the debris above the ground, s(t), in feet, t seconds after the explosion. What is the instantaneous speed of the debris when it hits the ground?
A. 224 B. -224 C. -112 D. 112
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x + 4)3
A. x3 + 12x2 + 12x + 64 B. x3 + 4x2 + 8x + 64 C. x3 + 12x2 + 8x + 64 D. x3 + 12x2 + 48x + 64