Express the number in scientific notation.0.000315
A. 3.15 × 10-3
B. 3.15 × 104
C. 3.15 × 10-4
D. 3.15 × 10-5
Answer: C
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Multiply the polynomials.(x2 + x - 3)(x2 + x - 1)
A. x4 + 2x3 + 4x2 - 2x + 3 B. x4 + 2x3 - 3x2 - 4x + 3 C. x4 + x3 + 5x2 + 4x + 3 D. x4 + x3 - 4x2 - 4x + 3
Write the equation of the line with the given slope and y-intercept.Slope- 
; y-intercept is 5
A. y = 
x - 5
B. y = - 
x + 5
C. y = 
x + 5
D. y = - 
x - 5
Write as a decimal.770%
A. 77 B. 0.77 C. 7.7 D. 7.71
Solve the problem.Data regarding the amount spent by a government department is represented in the following graph. Find the slope of the line by using any two of the points shown on the line. Is the slope equal to the yearly change in amount spent? 
A. Slope: $0.15 billion; no B. Slope: $0.35 billion; yes C. Slope: $0.6 billion; yes D. Slope: $0.25 billion; no