Solve the problem.The graph depicts a relationship between scores achieved on an unspecified standardized test and family income. Find the slope of the line.
A. 100 point(s) per thousand dollars
B. 10.1 point(s) per thousand dollars
C. 1 point(s) per thousand dollars
D. 1000 point(s) per thousand dollars
Answer: C
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Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (7, -6), perpendicular to 5x + 6y = -1
A. y = 
x
B. y = - 
x + 
C. y = 
x + 72
D. y = 
x - 
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 5
C. 
D. 
Solve using matrices.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 19 pounds of feed worth $0.39 per pound by mixing one kind worth $0.12 per pound with another worth $0.52 per pound. How many pounds of the cheaper kind should they use in the mix?
A. 8 pounds B. 18 pounds C. 13 pounds D. 6 pounds
Write the number in standard notation.3000 + 600 + 50 + 4
A. 3000 + 654 B. 3654 C. 4563 D. 4000 + 563