Translate the phrase to an algebraic expression.Seven more than x
A. 7x
B. 7 - x
C. x + 7
D. 
Answer: C
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Find the median.The number of vehicles passing through a bank drive-up line during each 15-minute period was recorded. The results are shown below. Find the median number of vehicles going through the line in a fifteen-minute period.21 23 21 2424 21 26 2331 27 27 2520 27 21 1611 23 23 23
A. 24 B. 27 C. 23 D. 22.85
Write the sentence as an equation. Let the variable x represent the number.The product of 6 and a number, increased by 3, is 21.
A. 18x = 21 B. 6(x + 3) = 21 C. 6x - 3 = 21 D. 6x + 3 = 21
Solve the problem.Determine which of the following sets is a subspace of Pn for an appropriate value of n.A: All polynomials of the form p(t) = a + bt2, where a and b are in ?B: All polynomials of degree exactly 4, with real coefficientsC: All polynomials of degree at most 4, with positive coefficients
A. C only B. A only C. A and B D. B only
Solve the system of equations using substitution.
A. x = 2 , y = -2; x = 7, y = -7
or (2, -2), (7, -7)
B. x = -2 , y = - 
; x = -7, y = - 
or 
, 
C. x = - 
, y = -7 or 
D. x = - 
, y = -2; x = - 
, y = -7
or 
, 