Simplify the expression by combining like terms, if possible.3x2 + 5x - 5 + 3x + 9 + 9x2
A. 12x2 + 8x + 4
B. 24x3
C. 4x2 + 6x + 14
D. 12x4 + 8x2 + 4
Answer: A
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Which of the following does not utilize the commutative property (there may be more than one property used)? ?
A.
?5(x + 4) = 5x + 5(4) = 5x + 4(5)
B.
?
C.
?a + (b + c) = (a + b) + c
D.
?a + (b + c) = (b + a) + c
E.
?None of the above.
Suppose that y is inversely proportional to x. Use the given information to find the constant of proportionality k. Then use y = 
to find y for the given value of x.y = 17.5 when x = 5;
Find y given x = 25.
A. k = 3.5; y = 87.5 B. k = 77.5; y = 3.5 C. k = 87.5; y = 3.5 D. k = 100; y = 4
Estimate. Then find the actual sum0.212 + 70 + 280.1
A. Estimate: 350.4; Actual: 350.312 B. Estimate: 350.3; Actual: 350.312 C. Estimate: 350.3; Actual: 349.312 D. Estimate: 350.4; Actual: 349.312
Determine if the given number is a solution to the given equation. Answer yes or no.Is 13 a solution to p - 12 = 1 ?
A. yes B. no